Scientific and Medical Antiques and Vintage Equipment

Medical & Science Antiques

Antique Slide Rules

A new selection of vintage slide rules at competitive prices every day. If you're looking for a Pickett slide rule with case, Faber Castell or Keuffel & Esser circular spiral slide rule, Sun Hemmi bamboo slide rule with case, Dietzgen binary slide rule in box, USSR military slide rules, or any other collectible slide rule, this is the place to find new opportunities every day.
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Slide Rule Instruction Booklet Cover Only 1938 Keuffel & Esser Co. Buy Now »

Slide Rule Instruction Booklet Cover Only 1938 Keuffel & Esser Co.

Buy: $5.60 Ships:
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4 mins
  • Item Condition: Used
  • Item Location: La Follette, TN, USA ZIP 37766
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Seller: arnoldo   Feedback: 8,386 / 99.9%
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Vintage Pickett Microline 120 Student Slide Rule With Case Sheath White Plastic Buy Now »

Vintage Pickett Microline 120 Student Slide Rule With Case Sheath White Plastic

Buy: $16.98 Ships:
$3.99
$20.97
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6 mins
  • Item Condition: Used
  • Item Location: San Diego, CA, USA ZIP 92117
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.99
  • Handling Time: 2 business days
  • Seller: kabrooke07   Feedback: 362 / 100%
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A.W. Faber "Castell" Slide Rule "378" , Made in Germany Buy Now »
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A.W. Faber "Castell" Slide Rule "378" , Made in Germany

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$39.95
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23 mins
  • Item Condition: Used
  • Item Location: Orlando, FL, USA ZIP 32817
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  • Handling Time: 1 business day
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  • Seller: undergroundrs   Feedback: 269 / 99.1%  Top-Rated Seller Top-Rated Seller
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VINTAGE STERLING PRECISION SLIDE RULE W/CASE INSTRUCTIONS Buy Now »

VINTAGE STERLING PRECISION SLIDE RULE W/CASE INSTRUCTIONS

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25 mins
  • Item Condition: Used
  • Item Location: Sikeston, MO, USA ZIP 63801
  • Shipping Type: Calculated
  • Handling Time: 1 business day
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  • Seller: kikic4860   Feedback: 4,105 / 100%
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Vintage K+E 4161-1 Pocket Slide Rule Calculator Buy Now »
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Vintage K+E 4161-1 Pocket Slide Rule Calculator

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$29.99
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47 mins
  • Item Condition: Used
  • Item Location: Calexico, CA, USA ZIP 92231
  • Shipping Type: Free
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  • Handling Time: 2 business days
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  • Seller: cachanilla58   Feedback: 6,633 / 99.5%
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Keuffel & Esser Co. Slide Ruler 1947 with Case Buy Now »
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Keuffel & Esser Co. Slide Ruler 1947 with Case

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$23.99
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52 mins
  • Item Condition: Used
  • Item Location: Havertown, PA, USA ZIP 19083
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  • Seller: ralphizzle4444   Feedback: 10,176 / 100%  Top-Rated Seller Top-Rated Seller
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 Vintage Cardinell Transparent # 900 Scale Rule for Architects ~ pocket size Buy Now »
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Vintage Cardinell Transparent # 900 Scale Rule for Architects ~ pocket size

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$9.95
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1 hr
4 mins
  • Item Condition: Used
  • Item Location: Coweta, OK, USA ZIP 74429
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  • Handling Time: 1 business day
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  • Seller: elderlyelectronics99   Feedback: 11,069 / 100%
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Vintage Keuffel & Esser NY Slide Rule w Leather Case 4088-2 #A Buy Now »

Vintage Keuffel & Esser NY Slide Rule w Leather Case 4088-2 #A

Buy: $39.99 Ships:
$10.00
$49.99
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1 hr
19 mins
  • Item Condition: Used
  • Item Location: Santa Clara, CA, USA ZIP 95050
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  • Shipping Cost: $10.00
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  • Handling Time: 1 business day
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  • Seller: dasdasdata   Feedback: 2,041 / 100%  Top-Rated Seller Top-Rated Seller
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Dietzgen Slide Rule Microglide Cat. Number1734 W/ Leather Case #C Buy Now »

Dietzgen Slide Rule Microglide Cat. Number1734 W/ Leather Case #C

Buy: $39.99 Ships:
$12.00
$51.99
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1 hr
19 mins
  • Item Condition: Used
  • Item Location: Santa Clara, CA, USA ZIP 95050
  • Shipping Type: Flat Rate
  • Shipping Cost: $12.00
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  • Handling Time: 1 business day
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  • Seller: dasdasdata   Feedback: 2,041 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage-Dietzgen Multiphase Style M Cat. No. 1738 Slide Rule with Case #E Buy Now »

Vintage-Dietzgen Multiphase Style M Cat. No. 1738 Slide Rule with Case #E

Buy: $49.99 Ships:
$10.00
$59.99
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1 hr
19 mins
  • Item Condition: Used
  • Item Location: Santa Clara, CA, USA ZIP 95050
  • Shipping Type: Flat Rate
  • Shipping Cost: $10.00
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  • Handling Time: 1 business day
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  • Seller: dasdasdata   Feedback: 2,041 / 100%  Top-Rated Seller Top-Rated Seller
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 Vintage Cardinell Transparent # 901 Scale Rule for Engineers ~ pocket size Buy Now »
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Vintage Cardinell Transparent # 901 Scale Rule for Engineers ~ pocket size

Buy: $9.95 Ships:
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$9.95
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1 hr
20 mins
  • Item Condition: Used
  • Item Location: Coweta, OK, USA ZIP 74429
  • Shipping Type: Free
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  • Handling Time: 1 business day
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  • Seller: elderlyelectronics99   Feedback: 11,069 / 100%
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Vintage Keuffel & Esser 4092-3 Log Duplex Slide Rule w/Leather Case Pat. 1900 Buy Now »

Vintage Keuffel & Esser 4092-3 Log Duplex Slide Rule w/Leather Case Pat. 1900

Buy: $9.99 Ships:
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1 hr
28 mins
  • Item Condition: Used
  • Item Location: Batavia, OH, USA ZIP 45103
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Seller: vintagethisnthat   Feedback: 1,417 / 100%  Top-Rated Seller Top-Rated Seller
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Old VTG A.W.Faber Castell 67/54b Darmstadt Slide Rule Engineering Ruler w/ Case Buy Now »
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Old VTG A.W.Faber Castell 67/54b Darmstadt Slide Rule Engineering Ruler w/ Case

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1 hr
40 mins
Vintage FABER CASTELL 67/54 R Darmstadt Addiator Pocket Slide Rule Calculator Buy Now »
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Vintage FABER CASTELL 67/54 R Darmstadt Addiator Pocket Slide Rule Calculator

Buy: $22.99 Ships:
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$22.99
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1 hr
43 mins
  • Item Condition: Used
  • Item Location: Calexico, CA, USA ZIP 92231
  • Shipping Type: Free
  • Expedited Shipping
  • Handling Time: 2 business days
  • Returns Accepted
  • Seller: cachanilla58   Feedback: 6,633 / 99.5%
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Vintage Mannheim Type Slide Rule w Case, instructions and box ACU-MATH No. 400 Buy Now »

Vintage Mannheim Type Slide Rule w Case, instructions and box ACU-MATH No. 400

Buy: $40.00 Ships:
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1 hr
59 mins
  • Item Condition: Used
  • Item Location: Okemos, MI, USA ZIP 48864
  • Shipping Type: Calculated
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  • Handling Time: 3 business days
  • Returns Accepted
  • Seller: bluebin_1   Feedback: 245 / 100%
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Vintage Keuffel & Esser 4081-3 Slide Rule w/ Original Black Leather Case Buy Now »

Vintage Keuffel & Esser 4081-3 Slide Rule w/ Original Black Leather Case

Buy: $20.00 Ships:
$10.00
$30.00
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2 hrs
29 mins
  • Item Condition: Used
  • Item Location: Peoria, AZ, USA ZIP 85345
  • Shipping Type: Flat Rate
  • Shipping Cost: $10.00
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: misspearlsattic   Feedback: 19 / 100%
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Lutz slide rule 102 S with case 1970 Peace Symbol on Back Buy Now »

Lutz slide rule 102 S with case 1970 Peace Symbol on Back

Buy: $9.97 Ships:
$4.50
$14.47
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2 hrs
32 mins
  • Item Condition: Used
  • Item Location: Austin, TX, USA ZIP 78750
  • Shipping Type: Flat Rate
  • Shipping Cost: $4.50
  • Handling Time: 1 business day
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  • Seller: old_peddler   Feedback: 1,192 / 100%  Top-Rated Seller Top-Rated Seller
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Oakite Products Inc. Some Good Things To Know About Metal Cleaning Handbook Buy Now »

Oakite Products Inc. Some Good Things To Know About Metal Cleaning Handbook

Buy: $5.75 Ships:
$2.67
$8.42
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2 hrs
36 mins
  • Item Condition: Used
  • Item Location: Sulphur Springs, IN, USA ZIP 47388
  • Shipping Type: Flat Rate
  • Shipping Cost: $2.67
  • Handling Time: 2 business days
  • Seller: jchapin82   Feedback: 145 / 100%
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Physical Characteristics Of Laminated Pyrotex 1966 Slide Ch Buy Now »

Physical Characteristics Of Laminated Pyrotex 1966 Slide Ch

Buy: $6.25 Ships:
$2.67
$8.92
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2 hrs
42 mins
  • Item Condition: Used
  • Item Location: Sulphur Springs, IN, USA ZIP 47388
  • Shipping Type: Flat Rate
  • Shipping Cost: $2.67
  • Handling Time: 2 business days
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  • Seller: jchapin82   Feedback: 145 / 100%
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Vintage Hemmi Slide Ruler Made In Japan 🇯🇵💕 Buy Now »

Vintage Hemmi Slide Ruler Made In Japan 🇯🇵💕

Buy: $37.77 Ships:
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2 hrs
44 mins
Frederick Post Co. model 1447 slide ruler Buy Now »
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Frederick Post Co. model 1447 slide ruler

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$15.95
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2 hrs
49 mins
  • Item Condition: Used
  • Item Location: Stamford, VT, USA ZIP 05352
  • Shipping Type: Free
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  • Handling Time: 2 business days
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  • Seller: boul.joh   Feedback: 290 / 100%
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1953 LOG LOG Pickett SLIDE RULES MAURICE HARTUNG Manual Buy Now »

1953 LOG LOG Pickett SLIDE RULES MAURICE HARTUNG Manual

Buy: $15.38 Ships:
$2.99
$18.37
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2 hrs
55 mins
  • Item Condition: Used
  • Item Location: Powell, TN, USA ZIP 37849
  • Shipping Type: Flat Rate
  • Shipping Cost: $2.99
  • Handling Time: 2 business days
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  • Seller: silver_coins_knives   Feedback: 3,843 / 100%
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KEUFFEL & ESSER  SLIDE RULE PATENTED 1900 Buy Now »

KEUFFEL & ESSER SLIDE RULE PATENTED 1900

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3 hrs
3 mins
  • Item Condition: Used
  • Item Location: Lawrenceville, GA, USA ZIP 30045
  • Shipping Type: Calculated
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: detailed1   Feedback: 3,448 / 100%
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Vintage Fearns Shaft Size & Horsepower Scientific Instrument Buy Now »
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Vintage Fearns Shaft Size & Horsepower Scientific Instrument

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3 hrs
19 mins
  • Item Condition: Used
  • Item Location: Tucson, AZ, USA ZIP 85749
  • Shipping Type: Free
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  • Handling Time: 3 business days
  • Seller: drngo98   Feedback: 1,159 / 100%
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Antique Keuffel & Esser K&E N4041 Mannheim Slide Rule 10" Case Buy Now »

Antique Keuffel & Esser K&E N4041 Mannheim Slide Rule 10" Case

Buy: $34.99 Ships:
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3 hrs
28 mins
  • Item Condition: Used
  • Item Location: Broad Brook, CT, USA ZIP 06016
  • Shipping Type: Calculated
  • Handling Time: 3 business days
  • Seller: njfewct   Feedback: 2,269 / 100%
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Concise No. 28 Circular Slide Rule Plastic Bid Now » Buy Now »

Concise No. 28 Circular Slide Rule Plastic

Bid: $15.00
Buy: $19.50
Ships:
$3.00
$18.00
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3 hrs
35 mins
  • Item Condition: Used
  • Item Location: Mountain View, HI, USA ZIP 96771
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.00
  • Handling Time: 2 business days
  • Seller: volcanokid   Feedback: 2,089 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage Keuffel & Esser  K+E 4055 Favorite Slide Rule w/ Case EUC Buy Now »

Vintage Keuffel & Esser K+E 4055 Favorite Slide Rule w/ Case EUC

Buy: $14.99 Ships:
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$14.99
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3 hrs
39 mins
  • Item Condition: Used
  • Item Location: Broad Brook, CT, USA ZIP 06016
  • Shipping Type: Calculated
  • Handling Time: 3 business days
  • Seller: njfewct   Feedback: 2,269 / 100%
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VINTAGE FREDERICK POST No. 1446 BAMBOO SLIDE RULE - "SUN" HEMMI - Used Buy Now »
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VINTAGE FREDERICK POST No. 1446 BAMBOO SLIDE RULE - "SUN" HEMMI - Used

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$16.99
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3 hrs
40 mins
  • Item Condition: Used
  • Item Location: Mesa, AZ, USA ZIP 85202
  • Shipping Type: Free
  • Handling Time: 1 business day
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  • Seller: jerome1205   Feedback: 3,947 / 100%  Top-Rated Seller Top-Rated Seller
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Old VTG Frederick Post Co. Slide Rule Wood Engineering Ruler No. 1446-D Student Buy Now »

Old VTG Frederick Post Co. Slide Rule Wood Engineering Ruler No. 1446-D Student

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$3.49
$28.44
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3 hrs
45 mins
  • Item Condition: Used
  • Item Location: Hiram, GA, USA ZIP 30141
  • Shipping Type: Flat Rate
  • Shipping Cost: $3.49
  • Handling Time: 2 business days
  • Returns Accepted
  • Seller: hunchris-hp83darn3   Feedback: 876 / 100%
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Pickett Slide Rule Model 500-T Ortho-Phase-Log Log Buy Now »
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Pickett Slide Rule Model 500-T Ortho-Phase-Log Log

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$14.99
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4 hrs
12 mins
  • Item Condition: Used
  • Item Location: Waynesboro, VA, USA ZIP 22980
  • Shipping Type: Free
  • Handling Time: 1 business day
  • Seller: cacheforcash   Feedback: 519 / 100%  Top-Rated Seller Top-Rated Seller
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Picket Microline 121 Buy Now »
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Picket Microline 121

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$15.99
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4 hrs
12 mins
  • Item Condition: Used
  • Item Location: Waynesboro, VA, USA ZIP 22980
  • Shipping Type: Free
  • Handling Time: 1 business day
  • Seller: cacheforcash   Feedback: 519 / 100%  Top-Rated Seller Top-Rated Seller
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Prime-Line  Assorted  Cast Metal  Plunger Latch  4 pk Buy Now »
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Prime-Line Assorted Cast Metal Plunger Latch 4 pk

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4 hrs
20 mins
Prime-Line  Painted  White  Die-Cast Zinc  Sash Lock  1 Buy Now »
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Prime-Line Painted White Die-Cast Zinc Sash Lock 1

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$8.00
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4 hrs
21 mins
Vintage PICKETT SLIDE RULE MODEL N200-T TRIG Original Case Buy Now »

Vintage PICKETT SLIDE RULE MODEL N200-T TRIG Original Case

Buy: $19.99 Ships:
$7.95
$27.94
Buy now
4 hrs
22 mins
  • Item Condition: Used
  • Item Location: Ridgecrest, CA, USA ZIP 93555
  • Shipping Type: Flat Rate
  • Shipping Cost: $7.95
  • Handling Time: 4 business days
  • Returns Accepted
  • Seller: gaschrec0   Feedback: 12 / 100%
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VINTAGE DIETZGEN No. 1732 TRIG TYPE LOG LOG SLIDE RULE IN LEATHER CASE Buy Now »

VINTAGE DIETZGEN No. 1732 TRIG TYPE LOG LOG SLIDE RULE IN LEATHER CASE

Buy: $20.00 Ships:
$8.00
$28.00
Buy now
4 hrs
22 mins
  • Item Condition:
  • Item Location: Bella Vista, AR, USA ZIP 72714
  • Shipping Type: Flat Rate
  • Shipping Cost: $8.00
  • Handling Time: 2 business days
  • Returns Accepted
  • Seller: vinwood01   Feedback: 3,107 / 100%  Top-Rated Seller Top-Rated Seller
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Vintage A W Faber Model 367 Slide Rule Buy Now »

Vintage A W Faber Model 367 Slide Rule

Buy: $110.00 Ships:
$15.00
$125.00
Buy now
4 hrs
24 mins
  • Item Condition: Used
  • Item Location: Walnut Creek, CA, USA ZIP 94598
  • Shipping Type: Flat Rate
  • Shipping Cost: $15.00
  • Expedited Shipping
  • Handling Time: 3 business days
  • Seller: brandy   Feedback: 1,604 / 100%
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VTG Vintage K&E Keuffel & Esser Slide Rule with Original Leather Case 1947 or 48 Bid Now » Buy Now »

VTG Vintage K&E Keuffel & Esser Slide Rule with Original Leather Case 1947 or 48

Bid: $35.00
Buy: $47.00
Ships:
Based on Zip
$35.00
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Buy now
4 hrs
27 mins
  • Item Condition: Used
  • Item Location: New Bern, NC, USA ZIP 28562
  • Shipping Type: Calculated
  • Handling Time: 2 business days
  • Seller: bcbdesigns   Feedback: 305 / 100%
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Vintage Relay Bamboo Slide Rule No. 150 with Leather Case, Made in Japan Buy Now »

Vintage Relay Bamboo Slide Rule No. 150 with Leather Case, Made in Japan

Buy: $29.99 Ships:
$7.95
$37.94
Buy now
4 hrs
36 mins
  • Item Condition: Used
  • Item Location: Ridgecrest, CA, USA ZIP 93555
  • Shipping Type: Flat Rate
  • Shipping Cost: $7.95
  • Expedited Shipping
  • Handling Time: 4 business days
  • Returns Accepted
  • Seller: gaschrec0   Feedback: 12 / 100%
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vintage Slide Rule, 6 inches long, A.M. Carrow Houston Texas, great collectible Buy Now »

vintage Slide Rule, 6 inches long, A.M. Carrow Houston Texas, great collectible

Buy: $19.99 Ships:
$5.00
$24.99
Buy now
4 hrs
47 mins
  • Item Condition: Used
  • Item Location: North Pole, AK, USA ZIP 99705
  • Shipping Type: Flat Rate
  • Shipping Cost: $5.00
  • Handling Time: 1 business day
  • Returns Accepted
  • Seller: way_up_in_ak   Feedback: 25,456 / 100%
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GRAPHOPLEX 640 Log Log Slide Rule with Box and Instructions Made in France Buy Now »
Free Shipping

GRAPHOPLEX 640 Log Log Slide Rule with Box and Instructions Made in France

Buy: $32.00 Ships:
Free
$32.00
Buy now
4 hrs
57 mins
  • Item Condition: Used
  • Item Location: Moncks Corner, SC, USA ZIP 29461
  • Shipping Type: Free
  • Expedited Shipping
  • Handling Time: 2 business days
  • Seller: teknomuzic   Feedback: 61 / 100%
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