A highly developed chromium over brass altimeter barometer No 141502 by R. Fuess, Berlin-Steglitz c1937

Aneroid barometer having 70mm diameter, machine engraved aluminium, off-white ground dial, the outer bezel set altitude scale calibrated in metres with a range from 0 – 2,500m and divided down to 10m, inner barometric scale calibrated in mmHg with a range from 560mm – 790mm divided down to 1mm. The upper part with Fuess logogram and Höhenmesser (Altimeter), the lower with serial Nr. 141502 and Kompensiert (Compensated). Light alloy knife terminating pointer. Bevelled glass.
 
High quality precision movement assembled between three plates with standoffs driven from a bifurcated, flux welded cupro-beryllium sylphon acting on levers, across a finely pivoted spindle operating a rack to an arbor mounted pinion. Balance and temperature compensating components.

The whole contained within a chrome-plated drum form case, the verso engraved T.5, possibly an inventory number, and dated 1937. Shuttered calibration port, pendant and bow. Presented in its correct brown leather carry case with security buckled strap, stud and slit fastening.
 
Condition: The subject of a full service, conservation, and calibration under laboratory conditions, see performance chart from dynamic test. The movement working well.

The dial about fine, the outer case with some minor marks. The leather carry case structurally sound with good colour.
 
Comments: Not often seen and especially so in this condition. These would have been very expensive instruments and represent the best that could be manufactured at the time.

Certainly very collectable.