It almost looks like it was trying hard and heading in the right direction to be a doubled die. You have a good eye for detail! You're looking in the right spots. Also a very slight off center/misaligned strike and what looks like the start of a cud in the 9:30 position. But I'm probably picking at straws.
I see it now. It's a very small one, but it is a cud. My focus was directed to the date, making me miss it.