Mr. Moonlight! Sweet drum.
IMHO: That has about as much to do with an Acro as some old cheese... Make your own badge. Get a small piece of brass stock, take it to an engraver (it's not all that expensive) and engrave your own badge. Maybe saying it's an Acro conversion with the date of 'birth'. Gives the lucky bum a clue where it came from in fifty years...