Lot 731 — Great Britain one pound Postal Congress, sold for $460 July 24, 2020October 16, 2013 by Sparks Auctions Lot 731 Great Britain #209 1929 £1 black Postal Union Congress of London, mint hinged, very fine and fresh. Also includes #205-208, mint hinged, very fine. Scott CV$815, sold for $400 plus buyer’s premium.