Photo from the collection Alf Batchelder.

 This is an Australian-built Mirage-IIIO, in the colors of 75 Squadron. The squadron's magpie emblem is taken from the emblem of the famous Australian football club Collingwood. According to legend, the "O" in the in Mirage III-O was decided on by the French Dassault company to distinguish the Australian models - the story goes that they thought the spelling of 'Australia' was 'Ostralia'.