Anti-Aircraft Artillery Range Indicator, US Navy, Mark 1, 1944 Cold War or transport aircraft such as

or transport aircraft such as the C-46 or C-47

landing gear

This item has a serial number prefix of AF-52

Our Elgin A-8 has definitely seen a bit of service

which told him how far he was from the point of touch-down

Anti-Aircraft Artillery Range Indicator, US Navy, Mark 1, 1944 Cold War or transport aircraft such asHere is a WWII USNavy Range Indicator, Antiaircraft Gunnery, Mark 1. It is a hand held finder used to ascertain the range of an enemy aircraft based upon its known wingspan. They were only as accurate as the observers knowledge of aircraft identification and of course, how rapidly he could spot, identify, track and calculate the information to pass this on to the gunners (usually manning 20mm to 40mm guns or a 3" gun mount typically used on auxiliary