Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura This Shellback certificate is unique

This Shellback certificate is unique because it was from the US Navy's first aircraft carrier

was part of the direction finding and landing system "PeilG V" and "PeilG 6" as well as the FuG 16 Z / ZY

When you’re done with the top timer press the left button again

for Air Corps US Army

(The prism has a small chip in its lower left corner)

Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura This Shellback certificate is uniqueHere is a WWII era Direction Finding (DF) Indicator as used in aircraft of the British Royal Air Force, such as bombers Avro Lancaster, Handley Page Halifax, and Vickers Wellington, and patrol bomber Short Sunderland. The DF Indicator received its signal from the R. 1155 receiver in the radio (wireless) comparment. By seeking a signal from a ground transmitter, the indicator displayed the direction of the transmitter in relation to the aircraft by