Kansas State Quarter Error (2005)

Will need better photos,but most likely a Struck Through Grease.
John1

2005 seemed to be a big year for greasers, the 2005 Kansas State Quarter "In God We Rust" Error is usually what people find (on the obverse) and sells regularly while yours shows on the reverse but check also the obverse. Better images of both sides would help others. This type of error you likely have is called a Struck Through Grease filled die (or just "filled die") error." Grease strike throughs are very common for the most part, they're probably the most common error type besides laminations, and in the past normally only grease strikes which have obliterated large areas of the coin have any decent added value. The exception are coin series which are rarely found with errors of any kind. An example would be a 5 oz America the Beautiful coin, which is a series rarely found with any type of errors. But even for a coin like that, the strike through needs to be fairly large to really add much value. At the moment all these grease strike throughs including the minor ones are however generally selling for a small premium despite some being quite common, and some are more popular than others such as the in god we rust, and obviously when enough is missing to entice some of the more serious collectors is where the values tend to be higher.

Try this pic

Does this error increase the value of the coin?

Still a nice find! Keep Hunting.