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(61 - 80 of 247)
Unidentified early fuze (1943) and plastic model, tagged “Reject.”
Surveying telescope
Weights, 2 boxes, brass
Balance, chainomatic in case with weights
Potentiometer, type K-2
Variable scale ruler
AIR-7 (Mk148) fuze
Potentiometer, standard resistance
Chemistry models, plastic
pH meter, Model G
Potentiometer, standard resistance
Aviation altimeter
Burt photo cell
Protractor (B)
Keuffel and Esser Le Roy lettering set
Army air force bubble sextant
Torsion seismograph
Tower drafting set