I'm trying to find out if the circled areas of these quarters are errors or what??? Just started collecting and I don't have a whole lot of knowledge yet....still learning...TIA...have a great day!
Looks like a 'struck thru' error - Probably machine grease/oil on the dies, giving it that 'textured' look you see. Fairly common, but good eyes to see it! Congrats.
Maybe a few dollars if you find that interested collector who wants an example. Remember, if you can find one, so can others, and because they occur on all State/Park Quarters, they're considered minor (unless the surface disruption is dramatic, like 1/3rd of the surfaces) errors - yes, collectable, but not much in premium.
