$250

Cameron Heartometer Blood Pressure Heart Rate Device 1930s or 1940s

$159.99

Maximum Weather Instruments Harbormaster Tide Clock Brass Case - TESTED, WORKS

$65

Günter Herrmann Lehrmittelfabrik Mathematical Model Cone with Sections Aid

$40.39

Antique Resistance Coils 100 Ohm 1 Ohm Mixed Set 3 Brass /Metal

$349.89

Vintage Vari-Tronic Jr. Model B - Atomic Age Radionics Collectible - Powers On"

$64.95

Build A Precision Mechanical Solar System by Eaglemoss Sealed Issues #26-30

$149.99

Vintage Soviet USSR Pressure Gauge Manometer 0 to 0.6 MPa Educational Instrument

$34

Vintage Weston Model 430 Amperes DC Ammeter University of Wisconsin nice one

$18

VINTAGE ADDIMULT SUMAT 6 METAL CALCULATOR ADDITION SUBTRACTION READ⬇️

$25

Old Armstrong Phenix Laboratory Conical Graduated Measure Beaker 2 Ounce Etched

$44.5

Vintage Cenco Scientific Educational Instrument Weight Measure Cast Iron Base

$16.99

Vintage 1940s 50s Sahli Hellige Hemometer kit In Duplex Case