$24.99

Lot of 5 Vintage Slide Rules Mannheim. Sterling. Lawrence. Boxes Manuals Case

$55

K&E SLIDE RULE LOG LOG DUPLEX 68 1287 w LEATHER CASE & INS BOOKLET & BOX rqqr

$10.96

Sterling Metric Converter Slide Ruler Drafting Engineering Yellow White

$125

Vintage Electronic Specialty Co Slide Rule with Leather Case

$38

Midex SP-30. 8 OHMS. 20W Nom. 30W Max. Japan.

$11.59

A. Lietz Company No. 2974 Weight Metals, Scale C, Scale D, Measuring Ruler

$15

Vintage Mannheim ACU MATH No. 400B Rule W/ Case

$21.99

Three Foxboro Fasteners (LK03U)

$31.15

Lot of 6 VTG Calculator Conventional Metric Slide Rule Conversion Filter Table

$30

Keuffel & Esser K&E 4081-3 Slide Rule w/ Leather Case Patented 1947

$48

Pickett & Eckel Inc Slide Ruler Model 4 1949 Vector Hyperbolic Log Leather Case

$97.49

Vintage Controller Mod. 75 R Circular Slide Rule Calculator Tool In Case GUC