Date: 12 October 1972. Title: Diamond Jubilee Royal Engineers Association 1912 - 1917. Type: Commemorative Cover. Stamps: 4ᵖ "Earls Barton, Northhants", commemorative, issued 21 June 1972. Special Handstamp: Corps of R.E. Diamond Jubilee REA BFPS 1327. See: Royal Engineers Association - http://www.reahq.org.uk
Date: 23 October 1972. Title: 30th Anniversary of minefield clearance EL ALAMEIN by Royal Engineers. Type: Commemorative Cover. Stamps: 3ᵖ "Tutenkhamun Discovery" commemorative, issued 26 April 1972. Special Handstamp: Corps of Royal Engineers 30th Anniversary Minefield Clearance EL Alamein BFPS 1328. See Wiki: Second Battle of El Alamein - https://en.wikipedia.org/wiki/Second_Battle_of_El_Alamein
Date: 20 November 1972. Title: The Sappers and Tanks in the First World War. Type: First Day Issue - Commemorative Cover. Stamps: 3ᵖ "Silver Wedding" commemorative, issued 20 November 1972. Cachet: Carried around the R.A.C. centre driving circuit at Bovington in Centurion Tank, Armoured vehicle R.R. 02 ZR 14 Weight 51.4 Tons. Spr/Driver P.Coats at the Controls. Special Handstamp: Corps of R.E. Inventors and Pioneers of Military Tanks, outline of an early tank, BFPS1338. See: Wiki Tanks in World War - https://en.wikipedia.org/wiki/Tanks_in_World_War_I
