That is RPM 001. Congrats http://coppercoins.com/lincoln/diestate.php?date=1960&die_id=1960d1mm001&die_state=mds
Looks like that is the 001. (large date) Nice coin. http://www.varietyvista.com/02b LC RPMs Vol 2/RPMs 1960D (1-60).htm
As asked in the other thread on the same coin.... You do realize that it's not FS-101 as suggested in the title, right? It's not the DDO, but just the referenced RPM.