I recently found several of these in a dealer's junk bin, and am trying to figure out what on earth they might be. Brass, with a beaded border, they appear to have an archaic typeface similar to merchant tokens in use from 1910-1930. Amusingly enough, the initials seem to be one of the more common European grades for tokens. About the only thing that would be harder to search for online would be a token that merely says "MS61".
I did an acronym search, and GVF pulled up "Guyana Volleyball Federation". And that was one of the more reasonable hits. Sigh.
No token starts out as a Maverick - they just become unknown when the last person who remembered what they were made for passes away without telling a collector.
Good observation. Unfortunately, I think we're in 100% maverick territory here, with this one, though I suppose you could still get lucky and find a definitive hit. Early 20th century, I'd imagine, based on the style. That's all I've got. Sorry.