2c Post Office, Specimen Ovpt. (O48S). Block of six with nearly complete top imprint in selvage, without gum as issued, intact perfs at left, bright shade FINE-VERY FINE. A VERY RARE BLOCK OF THE 2-CENT POST OFFICE SPECIAL PRINTING, SHOWING MOST OF THE IMPRINT AT TOP. Scott Retail as block of four and two singles with no premium for the better position.
Robert Siegel Auction Galleries, Mar 2015, Sale 1095, Lot 599
Post Office Dept., 1873, 2¢ black (Scott O48), unbelievable example with huge boardwalk margins, sharp clear impression, and great eye appeal, left margin single, o.g., barest trace of hinge (appears never hinged), Extremely Fine, 2012 P.S.E. certificate. Scott $30. Estimate price $200 – 300.
Daniel Kelleher Auctions, Oct 2012, Sale 632, Lot 1567