Census of 12c Blackish Purple, Special Printing (Scott 198)
Notes:
Provenance:
- 3/31/1976, Siegel Auction Galleries, 1976 Rarities of the World, Sale 489, Lot 125, Realized $1,000
- 7/25/2018, Siegel Auction Galleries, United States Stamps, Sale 1187, Lot 303, Realized $3,540
Certificates:
- PF 23180 (1966) Genuine with thin spot and reperforated top and left