Anemometer Negretti & Zambra (0270)
Info
Anemometer/Airmeter made by Negretti & Zambra. The "Certificate of Examination" is from March 1932. While the dial indicates "METRES", the correction figures on the certificate are noted in "FEET PER MIN".
The scale is rom 0 to 100. The smaller scale from 0 to 9.
With the etui comes a small screwdriver to reset the hundreds counter.
Inscriptions on dial:
METRES
Negretti & Zambra
LONDON
N° 1 19331