A friend of mine picked this up cheap off ebay
It's a stamping block for making the badges for what I think might have been one of the first enduros held in Cessnock. It seems to have been sponsored by Honda. The badge stamp has no date on it but I think it was probably from the 70's, and if my memory is correct promoted by Winston Stokes. Interesting that it was called the (CESSNOCK HUNTER 500 ENDURA ) not enduro. Just as a added interest he also has one of the original badges from this same event.
Zane