A fine 2 3/4 inch (7 cm.) diameter, gilt brass barometer for mountaineering/ballooning dated Sept., 1922 for the Regional Planning Body (military).
Rarely if ever used, the silvered dial measures from 15-31 inches of mercury (0-20,000 feet). Rotating bezel, responsive needle (bag tested), signed M. Pillischer, London. With suspension loop. Thickness is 1 inch (2.5 cm.). Compensated, Rain/Change/Fair for sea level use, bevelled glass (no scratches). 100% original, gilt brass finish.
Moritz Pillischer (1840-1890) was a top scientific instrument maker in
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