A receiver of vintage 1946 which was involved in RCM - EW Speak for Radio Counter Measures.  For those of you au fait with the mounting of the aerials for the QR and QS receivers [on an angle of 45˚] to receive both horizontally and vertically polarised signals, the QP aerial fit [shown in this file] is identical.  The file contains a picture of the main receiver forming this outfit.

QP RECEIVER OUTFIT.pdf