Census of 12c Blackish Purple, Special Printing (Scott 198)
Notes:
Provenance:
- 12/16/2008, Siegel Auction Galleries, Important and Superb United States Stamps, Sale 967, Lot 4311, Realized $31,050
Certificates:
- PF (1987)
- PF 203268 (1989) Genuine
- PSE (2004), Graded 95