A former workmate Barry B. was doing National service in the mid sixties and reckons one was missing when they went to clean up after them being abandoned for over ten years. Theory was it was sitting in a cow cockied shed. Thought he was joking until I read a newspaper article some years later which clearly stated x number being left and x-1 being tendered for sale by the commonwealth. What happened I do not know however they appear to have lost one between the mid fifties and the mid sixties.
