$9.95

VTG Ruler Circ-L-Scale Shaw Barton Coshocton, OH - Shell Oil Industrial Advert

$250.34

19th Century Sterling Serwis B.J. Hall & Co. LTD Westminster Surveying London

$99.99

Defcon Badge SAO = Sh!tty Add On - NASA Space Kitty - 5 Blinky Stars - White

$27.05

Karrena Aristo Number 89 5” Inch - 13 cm Slide Rule Made In Germany

$54.11

Vintage Avometer Model 40 Universal - Black - Unit Only * Untested *

$500

Nortel Framed Microchip Die Artwork – Vintage Telecom ASIC Engineering Display

$13.46

NESTLER SLIDE RULE Nr.9 WITH ORIGINAL CASE Made in Germany

$24.99

Vintage LOCTITE Adhesive Problem Solver Slide Rule Selector USA 🇺🇸 Excellent

$47.36

Antique Cased Draughtsman Set. Jackson Bros Ltd. Leeds and Armley Incomplete

$75

1957 KOSMOS THE YOUNG TECHNICIAN 170 EXPERIMENT SET IN BOX RARE MADE IN GERMANY

$25.7

Vintage BRL Slide Rule Academy 300 in slipcase & Instruction Leaflet

$16.24

Vintage Wood Mahogany Simplon England Bilateral Log-Log Slide Rule 33cm 13" Case