Census of 4c Blue, Error of Color, Used (Scott 233a)

Notes:

Provenance:

4/23/1970, Seymour Collection, Siegel Auction Galleries, The A. T. Seymour Collection of United States, Sale 373, Lot 247, Realized $1,900
3/23/1971, Siegel Auction Galleries, 1971 Rarities of the World, Sale 391, Lot 84, Realized $1,900, “minor thin”
11/6/2013, "World's Fair Collection, Siegel Auction Galleries, The World's Fair Collection - 1893 Columbian Issue, Sale 1055, Lot 102, Realized $14,000, " “minor thin”

Certificates:

PF 754 Genuine
PF 514791 Genuine with narrow thins at top right, and an internal paper rift at left center