Turn and Bank Indicator Pioneer Type C635C-84 Aerial Refueling 25 x 7 x 12

25 x 7 x 12

given its 600 lb capacity

and is one of the best we've seen

and have no data plate

PBY Catalina seaplane

Turn and Bank Indicator Pioneer Type C635C-84 Aerial Refueling 25 x 7 x 12This pneumatic Turn and Bank Indicator, Type C635C 84, is very similar to early WWII era Turn and Bank Indicators also made by Pioneer Bendix as appeared in military aircraft of the US Army Air Corps and US Navy. However, there does not appear to be any markings of either service branch, nor evidence of its year of manufacture. The design of the mounts of aircraft instruments evolved during early WWII from the dog ear style as seen on this instrument