The Aeroplane Spotter Weekly, Vol 1 Jan-June 1941 Collection Northrop

The Aeroplane Spotter Weekly, Vol 1 Jan-June 1941 Collection NorthropThis is a complete unbound collection of The Aeroplane Spotter, Volume 1, containing all 26 weekly publications from January though June 1941, a total of 244 pages, plus an article index to the volume. The Aeroplane Spotter was a British weekly newsletter full of information regarding military aircraft of the RAF, Luftwaffe, US Army Air Corps and others. Each weekly edition is printed on newsprint paper and obviously shows its age. It is full of

(i) The ability to disconnect the magnetic slaving signals of the C2 Fluxvalve

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It has a service date stamp of 2-59

but these claims have not been independently confirmed by AeroAntique

This is an early automobile altimeter that appears to be from the late 1920s-1930s based upon photos of luxury automobile dashboards of that era

which would be rotated to align with the compass card floating in the reservoir below it

A simple but very useful instrument at the time

The aircraft altitude and speed was entered on the rear of the sight

An airspeed indicator in test may have been connected between the pressure source and this test device

and maintenance of all types of instruments in use at the time

This is an original WWII-era Pedestal Gun Sighting Station from a US Army Air Force Boeing B-29 Superfortress Bomber used in its Central Fire Control System

The serial number prefix and order number prefix are both "28" indicating a likely year of manufacture of 1928 by the Star Compass Company