© 2018 Darrell Drury - Royal Engineers First Day Covers
Date: 3 January 1973.
Title: The 'Brennan' - The First Torpedo.
Type: First Day Issue - Commemorative Cover.
Stamps: 3ᵖ "Europe" commemorative, issued 3 January 1973.
Special Handstamp: Corps of R.E. Commemorating the invention of the Brennan Torpedo BFPS 1343.
Insert 1, The Brennan Torpedo image. Insert 2 The Brennan Torpedo text.
See: Wiki - Brennan Torpedo - http://en.wikipedia.org/wiki/Brennan_torpedo