Boys,
the more I look at that hat in the blow-up the more it looks like a hole, as if it was slammed down on someting that had a dull point!!
If you look real close it actually has a flat bottom to the dent, and there seems to be what is a crack in the felt on the left hand side bottom of the hole.
At first I thought it might be on the photograph but on further examination it is actually in the hat itself.....??
I'll bet that dent (if it didn't have the crack in it) would hold about a quart of coffee...
Bill