Wheel and Flap Position Indicator, AN-5780-2 RAF The dials on the front

The dials on the front and back center rotate

Stamped on the label on the case of the periscope is Serial No

The face is embossed with the marking BUR AERO US NAVY (Bureau of Aeronautics)

and also used on the Focke-Wulf Fw190 Fighter

Wheel and Flap Position Indicator, AN-5780-2 RAF The dials on the frontThese are Type AN 5780 2 Wheel and Flap Position Indicators used in WWII and post WWII aircraft with a nose wheel (vs tail wheel aircraft). According to the US Army Air Force Interchangeability Cross Reference Chart dated February 1945, the AN 5870 2 indicator was used in bombers B 26, A 26, and A 20, as well as in the fighter P 38. These were also used in B 25's and its USN version PBJ. The position of the wheels were indicated by the 3 small window