$499.99

JAs Green James Green Current Water Flow Meter Brass US Civil Engineering Corps

$33.65

Toshiba BC-8111 Electronic Pocket Calculator GWO (E199)

$12.98

vintage small pocket slide rule western gear diwa

$39

Vintage Clay Adams Blood Sedimentation Rack

$16.99

Vintage Bavaria Pocket Compass with Mirror Made in Germany

$21.6

Vintage Fullerton Opisometer with Pouch Map Measure Instrument Made in Germany

$17.95

VTG Glass Scale Hydrometer (N4R-13) Sacchrometer (JSF6) Petroleum Gravity Soil

$16.16

Vintage British Thornton Slide Rule No. P271 Log Log with case 1968

$15

Vintage Analytical Weights, by Clay-Adams, Class S2, A-2170, Made in USA

$29.61

West German Curvimeter Map & Nautical distance measuring wheel & Hand Magnifier

$40.95

Great Lot of several vintage instruments, England, Germany, USA [Y8-W6-A8]

$29.99

Vintage Fisher Beaker Tongs