I don't know if this counts as an error....it looks like it was mis-struck. Any thoughts? Any help would be greatly appreciated.
It is an error - the coin was struck slightly off center. As to value, it can vary greatly - from a dollar or two to fifty dollars depending on how far off center. I would guess your coin would be on the lower end.
To add to what GDJMSP said, off center strikes command more a premium when you start to lose some of the lettering. Really cool find though, I've yet to find one even as far off center as yours
Look at the rims - on the obverse there is practically no rim next to "QUARTER" and a very wide rim on the opposite edge. On the reverse its the state name that's near the edge.
