Airship Altimeter by Short & Mason Ltd., London (Admiralty pattern, c. 1916) Airship Altimeter by Short & Mason Ltd. circa 1916
Altimeter, early type by Negretti and Zambra, marked Central Flying School No. II Altimeter, early type by Negretti and Zambra
Altimeter, three pointer type, by Kollsman Instrument Division of Square D Company, New York, United States, 1920-1970. Mfr.'s part number 371K-05 D. Order No. AC26969. Altimeter, three pointer type, 1920-1970 1920-1970
Altimeter, serial no. F1 22322, German manufacture, c. 1944. Digital display in km and single pointer scale 0 to 1km. Altimeter, serial no. F1 22322
Roberts Digital Altimeter and Audio-Variometer, Mark IV, for hang-gliders, 1989. By Roberts Glider Instruments, Santa Barbara, California, USA. Roberts Digital Altimeter and Audio-Variometer 1989
A pair of non - identical Aircraft Contacting Altimeter Instruments being Type " C "and Type " EF ". Aircraft Contacting Altimeter Instruments 1940-1945