Known examples:
1) MS-65RB {PS} PCGS: Larry Steve; ANR "Classics" 1/03:172; EERC (2004); John Cantwell.
2) MS-64RD {PS} PCGS. Plate Snow (2003): Alan Williams; EERC (2004); Dr. Tom Fore; EERC (2008)
3) MS-64RB {PS} PCGS. Early die state (S2a). EERC (2008)
4) MS-64RB {PS} PCGS. Ron Robertson; EERC (2014)
5) MS-64BN PCGS: EERC (2007)
6) MS-63RB ANACS: Al Mays; Heritage 9/05:806;
7) MS-63RB: EERC (2007)