MS-60 is the grade handed out the fewest times by TPG's, but lately new ANACS has certified LOTS of MS-60's. In fact, more new ANACS MS-60 IHC's are for sale now on Heritage than have been certified by NGC in a decade.
I count 6 graded by ANACS and tey are all Net Graded - meaning they are problem coins, but uncirculated. Any unc coin with aproblem will be graded MS60 Details. NGC has graded more in MS60 of one date (1859) than those 6.