Hi, I found an Ike dollar in circulation (a 7-11 in my area holds em for me) and noticed that it was actually a clad proof that is heavily worn. I was wondering if there are proof grades that go below 60? The one I have looks about a 45 or below but I thought that only applied to MS grading. Maybe a dumb question, but any thought on this? Thanks!
Proof refers to the method of manufacture, not the grade, which means that proof coinage can be found across the entire grading spectrum from PR01 through PR70.