3/25-28/2008, Siegel Auction Galleries, United States Stamps, Sale 953, Lot 990, Realized $4,500, “couple trivial perf separations not mentioned on accompanying certificate”
Certificates:
PF 447992 Genuine, the right stamp with tiny tear at top, above the “t” in “Postage
9/20/2012, Natalee Grace Collection, Siegel Auction Galleries, The Natalee Grace Collection of Used U.S. Stamps, Part Three: 1902 and Later Issues, Sale 1028, Lot 336, Realized $19,000
2/23-24/2015, Curtis Collection, Siegel Auction Galleries, The Curtis Collection: U.S. 20th Century and Air Post, Sale 1093, Lot 149, Realized $5,750
5/22/2019, James Depew Collection, Siegel Auction Galleries, The James Depew Collection of Superb U.S. Coils and 20th Century Imperforate Issues, Sale 1202, Lot 2373, Realized $6,000
Certificates:
PF 11846 Genuine
PF 361801 Genuine
PF 527059 Genuine, positions 8 and 9 from the strip originally affixed to the cover prepared by Henry Hammelman in August 1911, Graded 75
4/28-30/2015, Hall Collection, Siegel Auction Galleries, The Robert R. Hall Collection of Outstanding United States Stamps, Sale 1096, Lot 596, Realized $8,500