Census of 30c Ultramarine & Carmine, Center Inverted (Scott 121b)

Notes:

Provenance:

5/31/1972, 1972 May 31 Col. Stillwell Collection, Siegel Auction Galleries, United States Postage and Revenues, Sale 413, Lot 126, Realized $30,000, sold by order of U.S. Trust Co.
4/7/2016, 2016 April 7 Hanover Collection, Siegel Auction Galleries, The Hanover Collection of Superb-Quality U.S. Stamps-Part One, Sale 1122, Lot 72, Realized $270,000
3/25/1975, Siegel Auction Galleries, 1975 Rarities of the World, Sale 468, Lot 103, Realized $32,500, 1975 Mar. 25
6/26/2014, Siegel Auction Galleries, 2014 Rarities of the World, Sale 1075, Lot 1111, Realized $290,000, 2014 June 26

Certificates: