Scientific

VERY SCARCE BOURDON TUBE BAROTHERMOGRAPH BY NEGRETTI & ZAMBRA No 4311 c1910
Barograph Bourdon Other Scientific Instruments Scientific Thermometer
VERY SCARCE BOURDON TUBE BAROTHERMOGRAPH BY NEGRETTI & ZAMBRA No 4311 c1910
WW2 PORTABLE ALTIMETER CALIBRATOR BY MUNRO No 295 c1940
Aviation Barometer Scientific Technology
WW2 PORTABLE ALTIMETER CALIBRATOR BY MUNRO No 295 c1940
PRECISION ANEROID MINING BAROMETER BY NEGRETTI & ZAMBRA No P/111671 c1950
Archive Scientific Technology
PRECISION ANEROID MINING BAROMETER BY NEGRETTI & ZAMBRA No P/111671 c1950
EXPERIMENTAL ANEROID BAROMETER BY NEGRETTI & ZAMBRA c1920
Archive Scientific Technology
EXPERIMENTAL ANEROID BAROMETER BY NEGRETTI & ZAMBRA c1920