Sorry I can't see anything different on the mint mark. The image doesn't make it stand out to me. Sorry
Point of the day
The mint state example and the circulated examples are almost the same prices. Why? It was a know event that there would be just a few struck that year from that mint and everyone bought up all they could get and hoarded them. Thus the small price difference. Same for other years of the new designs. The only exception is the 1909-S VDB where just a few were struck and the VDB was removed from the dies. A lot were saved during that time, so that is why you can many BU examples of the year.
Sorry I can't see anything different on the mint mark. The image doesn't make it stand out to me. Sorry