10/23/1998, Shreves Philatelic Galleries, Sale 29, Lot 1105
5/9/2008, Jay Hoffman Collection, Siegel Auction Galleries, The Jay Hoffman Collection of United States Stamps, Sale 956, Lot 371, Realized $264,500
6/14/2024, William H. Gross Collection, Siegel Auction Galleries, The William H. Gross Collection of Complete United States Stamps, Sale 1323, Lot 83, Realized $165,200
Certificates:
PF 11979 (1960) Genuine
PF 332697 (1998) Genuine, previously hinged
PF 602329 (2024) Unused, OG Pair, Genuine, previously hinged
A. Richard Engel Collection, (not included in his 1975 auction at Corinphila)
ca. 1984 acquired privately by Joseph E. Lessin
6/21/2002, Joseph E. Lessin Collection, Shreves Philatelic Galleries, Lot 385, described as acquired privately by Mr. Lessin in 1984
4/11-12/2018, The David Wingate Collection, Siegel Auction Galleries, The David Wingate Collection of United States Stamps, Sale 1180, Lot 336, Realized $160,000
Certificates:
PF 14635 (1961) “it is a genuine coil pair of Scott #389” - certificate issued to A. Richard Engel
4/28-30/2015, Hall Collection, Siegel Auction Galleries, The Robert R. Hall Collection of Outstanding United States Stamps, Sale 1096, Lot 632, Realized $180,000
Certificates:
PF 320714 Genuine, previously hinged
PF 527835 Genuine, previously hinged, with a few perforation separations at bottom
9/22-25/2009, Whitman Collection, Siegel Auction Galleries, The Alan B. Whitman Collection, Part Three: 1902-34 Issues, B-O-B, Sale 968B, Lot 494, Realized $330,000
4/29-30/2021, Gary Petersen Collection, Siegel Auction Galleries, The Gary Petersen Collection of Important United States Stamps, Sale 1234, Lot 324, Realized $370,000
Certificates:
PF 320715 (1997) Genuine, left stamp N.H., right stamp previously hinged with small thin spot
12/2/2005, Bennett Auctions, Rarities, Sale 297, Lot 3220, Realized $60,375
6/14/2024, William H. Gross Collection, Siegel Auction Galleries, The William H. Gross Collection of Complete United States Stamps, Sale 1323, Lot 82, Realized $50,150