$6.25

Box of 4 New Buss TL 20 Tron Edison base Time Delay Fuses 20A fuse

$33.41

RIEFLER A20 Drawing Draughting Set 13 Pieces in Original Case

$50.49

Vintage Original 6" Rectangular Protractor Map Scale Measuring Ruler Old Tool

$28.98

DOW CORNING - POW SLS SEH-39 B6623297DH – Semiconductor Silicon Wafer, Vintage.

$249.95

Vintage German 1960s ARISTO 0971 Hyperbolog Engineers Slide Rule Case Manual Box

$7.53

c1980s Norton Calculator For Grinding Polishing Wheel Speeds RPM Tool Stone 1A

$80.12

Vintage Compass W. & L.E. Gurley New York Field Compass, Marching Compass

$334.13

Wild Heerbrugg Theodolite T2000s

$25

Historic 1962 Fairchild 2N1613 Transistor: The First Planar Device Ever Produced

$38

K&E Mining Transit Book F 363 A made by the Keuffel & Esser Co.

$48.86

Crunch Labs Build Box TRAP DOOR MAZE by Mark Rober STEM NEW IN SEALED BOX

$49.99

Lockheed Circular Slide Rule Rigid Rotor Xh-51 Helicopter Keychain C61