Description on case reads: “Nozzle plate of the 5VO HVAR which destroyed the German Mark V and incapacitated a second tank in Normandy on July 26, 1944.”
Instrument was used by Heinz Lowenstam in field work in Palestine in the 1930s. It was given to him by Von Drigalsky, who had had it on the German Antarctic expedition. See Lowenstam oral history, p. 24. Mfg. German-made.
Used on the first ship to shore transmission (S.S. Vaterland) and for the first airplane transmitter by H.E. Mendenhall and Lewellyn. Mfg. Western Electric.
