Below are some of the main terms applicable to the aneroid barometers, altimeters, barographs, compasses, and other scientific instruments in which we deal.

Barometer New and Updated Technology
RAF ISSUE PRECISION ALTIMETER BY NEGRETTI & ZAMBRA No P/113153 c1955



Bourdon Compasses Sextants Related New and Updated Other Scientific Instruments Technology
DUPLEX TEST GAUGE BY DAVIES SHEPHARD No 43720 c1930










Archive Scientific Technology
PRECISION ANEROID MINING BAROMETER BY NEGRETTI & ZAMBRA No P/111671 c1950


