As said in the title, I have an Idaho state quarter with 0 damage or wear and tear, unfortunately since this is spur of the moment there isn't the luxury of a photograph, though it's easy to explain.. The copper coloring on the quarter is reversed (along the reeding), is this a common error in coins? (on a completely un-related note) Are there places to sell strictly copper coins?
The copper coloring is on the head side of the reeding, where'as all other quarters I've observed have the reverse.
Please post a good photo so we can understand what it is that you are describing. If I am understanding you correctly you think the copper core (visible along the edge of the coin where the reeding is located) is smeared toward the obverse instead of the reverse. I can tell you that when blanks for clad coins are punched out the copper in between the clad layers can smear over one of the clad layers. The blanks are then processed (annealed, run through the upset mill, cleaned, etc.) before they are fed into a coin press to be struck. The orientation of the planchets when they go into the coining chamber is completely random so there is no "correct" direction the smeared copper core should take. (Not all clad coins have smeared copper along the edge.)
