It may prove beneficial if the left hand of the forum turned around and shook the right hand. See the following recent (today 13 July 2018) thread on the Raiding Support Regiment (RSR) and black background parachute brevets;
https://www.britishbadgeforum.com/fo...ad.php?t=68792 Should specifically qualify that the similarity between brevets is only the black background, not the detail/color of the wings, or anything about the backing.
Arnhem Jim
Arizona Territory