I looked at my stack of 1972 extra Ikes last night for the first time in years after reading a post about the 3 types.
The reverse of this coin jumped out at me initially because there seemed to be a depth to the eagles head that the others didn't have, that and it has very nice toning on the reverse that really makes the eagle pop.
Then I looked at the little earth and didn't see any islands so I'm pretty sure this is a type II but want your opinion that it isn't just wear and please grade.



Low AU obverse but the reverse looks MS...my grade AU 55?