© 2018 Darrell Drury - Royal Engineers First Day Covers
Date: 13 September 1972.
Title: Military Communications - Landline to Satellite Royal Engineers to Royal Signals.
Type: First Day Issue - Commemorative cover.
Stamps: 2 x commemorative: 3ᵖ "Microphones", 5ᵖ "Oscillator and Spark Transmitter", issued 13 September 1972.
Special Handstamp: Corps of R.E. 75th Anniversary of Adoption of Wireless in the British Army BFPO 1326.