Oh and I will be the first to admit Idhair that I don't know everything . Although I will try my hardest to find something out if I don't actually know it ... Just like I'm doing right now . Lol .
The 76 is strike doubling. If the letters are recessed in the Ozark coin it to is strike doubling. If they are raised you might have something.
You were told the truth by those that know and you wished to ignore it. Waste your money. Send them in. Learn the hard way.