Instrument Flying, Technique in Weather, USAAF WWII AR-234 Here is a main tank

Here is a main tank Fuel Quantity Indicator as used in a US Navy aircraft as evidenced by the yellow USN anchor symbol stamped on its side

which has some watermarks

This is a Field Manual for the Identification of Japanese Aircraft published for US Military Intelligence by the War Department in March 1942

There are 10 clear plastic templates

would train to become "Qualified Observers"

Instrument Flying, Technique in Weather, USAAF WWII AR-234 Here is a main tankThis is an original WWII era pilots instruction manual covering instrument flying Technique in Weather, TO 30 100D 1 dated Jan 1944, 73 pages. It is in good condition given its age.