Antenna, Rebecca, AT-2/APN-2 Aerial Refueling This is a pair of

This is a pair of 1940-50's vintage dual engine Oil Pressure Gages

made by Hoffman

thus corresponding BMEP with BHP and RPM

Likely this version of Altimeter was also used in aircraft of the USSR

From our research

Antenna, Rebecca, AT-2/APN-2 Aerial Refueling This is a pair ofThis WWII era "Rebecca" antenna is a AT 2 APN 2, but a version that has the brown (resin or masonite) stabilizing 'wings' between the mast and the blades. Two were typically mounted on each side of the aircraft forward of the wing, receiving navigational signals from the "Eureka" transmitting station and indicating those signals to the crewman on a BC 929 A receiver (not included). See photo of a similar antenna mounted to the fuselage of a B 24