An unused British ten-shilling I.R. Official stamp sold for US$52,500 in Cherrystone’s November 2026 auction in Teaneck, New Jersey, according to the auctioneer’s results listing. The house had estimated the stamp, lot 571, at US$28,000–30,000. The published result does not specify how buyer’s fees are treated.

The ultramarine stamp was issued in 1902 and is perforated 14 on Anchor-watermarked paper. Cherrystone identified it as the type O2 overprint with a raised stop after the R in I.R. The single retains its top sheet margin. The catalogue notes that it lacks gum, has some soiling and has short perforations at the lower left. It cites a 1956 British Philatelic Association certificate and traces the item to the 1947 Harmer, Rooke find.

The sale ran in five sessions from 10 to 12 November. Its wider offering included Fred Hensel’s American Expeditionary Forces Siberia material, Scandinavian material from the Case Sprenkle estate, Canal Zone stamps and more than 170 collection or large lots.