Census of 12c Dark Violet, Special Printing (Scott 173)
Notes:
Provenance:
- 2/23/1966, Siegel Auction Galleries, 1966 Raritites of the World, Sale 296, Lot 81, Realized $660
- 10/2/1992, Siegel Auction Galleries, 1992 Raritites of the World, Sale 745, Lot 614
Certificates:
- PF 255626 (1990) Genuine
- PF (1992)