Basics: 1972 (P) Ikes have three basic types (I, II, and III). Each is distinguishable from the other by differences in how the earth on the reverse side looks (and specifically the islands off the southern tip of Florida). The real key of the set is the 1972 (P) Type II coin. It is believed that only one die was used to strike the Type II from Philadelphia and is the only 1972 (P)DS Ike I don't have, so I am always looking for one. I have never actually seen one in hand, and have just seen pictures so I thought, hmm I wonder if any other 72 D or S Ike that I have actually has the same "earth" on the reverse as the (P)Type II does. I've been looking at the D and S mint versions and it appears D mints have the Type I earth and the S mints have the Type II earth on the reverse (both the 40% silver business (blue ikes) and 40% silver proof (brown ikes)). Question: Can anyone confirm or deny that this is the case? If the S mints are Type II then I at least have an "in hand" example of what a Type II looks like when I am searching the (P) mints.