Standard callsigns through the 50s/60s. Beverleys were MOBX ... At the time of the transfer from ABLE, BAKER, CHARLIE, DOG, etc to the ICAO version there was a deal of confusion at first - Victor Sylvester Foxtrot springs to mind! At one time, in the late 50s there was only one serviceable Bev in the Aden Peninsular and the Signaller devised his own version - Mike Oscar Blunderbuss Xmas Gurgle ... for not very long!!