$109.96

Vintage Mechanical Calculator PLUS - Bell Punch Co - Rare & Working

$118.99

Vintage Leeds and Northrup Resistor Test Box

$134.67

Original Cambridge Instrument Co Ltd Thermometer type11 (dip stick)

$55

vintage Weston Electric Co Resistor Type 81 250V 145756 P82600028 steam punk 

$25.59

Vintage Keuffel & Esser Beginner's Wood Slide Rule

$27

W.S. Tyler Standard Test Sieve No. 30 * 0.0234 inches 600UM. * ASTM E-11 specs

$99

Vintage Hydrometer USSR set (20 pcs) of Hydrometers in BOX 1982 year

$141.45

Vintage Mechanical Calculator Corema Portable - Working Condition

$127.73

COMMUNICATION DEVELOPMENTS CORP MODEL PTT TEST SET REV 3.1 VINTAGE

$23.57

Sharp Calculator EL 376A Elsi Mate solar cell power vintage 1980s Japan boxed

$208.74

Vintage Voltmeter Ampmeter W&S F

$107.74

Vintage R. Williamson timer, enamel dial, good working order