Bidspirit auction | WWII era U.S. Corps of
WWII era U.S. Corps of Engineers No 6-2764 Wallace & Tiernan Aneroid Altimeter Surveying Instrument - Early wood case with woven fabric strap, 6 1/2 IN x 6 1/2 IN x 3 1/2 IN, lucite lens with one screw absent, U.S. imprint on rear.