Altimeter, Italian Royal Air Force (Regia Aeronautica Italiana), Salmoiraghi BOAC According to the RAAF 346

According to the RAAF 346 Types and Locations of Instruments in RAAF dated 1945

See instruction page from the SCR-595 manual in the photo gallery

According to AircraftCockpits

or Machmeter

Altimeter, Italian Royal Air Force (Regia Aeronautica Italiana), Salmoiraghi BOAC According to the RAAF 346This Italian Altimeter, made by Salmoraghi, was found in Tunisia in a wine cellar operating as an instrument repair shop, according to an attached tag dated May 5, 1945. The tag also reads J. I. C. A. APO 512. From our research, this acronym may be from an office of the Joint Intelligence Collecting Agency office in North Africa, as it appears that Army Post Office 512 was in or near Algiers, Algeria.