okay. I don't really collect quarters but that stuck out so I'd thought I'd ask. I couldn't find anything doing a general internet search …
If you look closely at circulated coins (try a roll of circulated State quarters) you'll see every number and every letter of the alphabet eventually. There is a name for it (I forgot it ) either beginning with an "S," "T," or "P." Someone here will tell us.
I do see the "8", but it is not shaped like the 8 font that was used on the Washington quarters so it CAN'T be a 9/8.