I’ve read all the comments posted on this topic and no one addressed the fact that the mint ceased production of the Morgan dollar in 1904, then brought it back for one year, 1921. Only the “purists” would argue that a 100 year gap makes this coin a commemorative. But then there is the 1921 Morgan. There is no question that the 1921 coin should be included in the series. So I guess a 17 year gap is okay, but not a 100 year gap. Sure you could argue the change in metal composition, then what about the Kennedys, Washington Quarters or Roosevelt dimes? There is no attempt to delineate those series. If the coin is a one year series, okay it’s a commemorative. The other arguments are the privy mint marks. You could argue that these are “commemorative” Morgans for those mints, but what about the P, D & S Morgans? Again, no one questions the 1921 D Morgan’s (a one year issue!), inclusion in the set. So my vote is to make it part of the original series!