5c. dark blue William McKinley, Scott 326,

marginal from the top of the sheet, printer's imprint 'Bureau, Engraving & Printing.', perfectly centred, rich colour, mint – never hinged. PERFECTION. (SMQ $2,650) The Philatelic Foundation Certificates 1983 (0117543) and 1989 (0212506)

Shreves Philatelic Galleries 23-25 October 2001 "The William S. Floyd Collection" (Lot 558)