Armourers in the Tech Wing Aden Gun Pack Bay - Apr61.   Maurice Parker tells me that the German fitter on the left is Alfred Werner.   Jock Purcell and John Mackenzie tell me that the rest are L to R: Mel Leake, Cook from Edinburgh,Allen 'Tubby' Jelley, Steve Aveling and Erol Palsey.   Erol retired as a Chief Tech and during his career became the RAF Shot and Discus Champion.   (Thanks to Joe Futymed.)