Brigham Auctions Limited / Holmes Philatelist Ltd / Phillips International Auctioneers / Argyll Etkin Limited / Brusden White Publishing / Cavendish Philatelic Auctions Ltd / Stamps Ltd / Cavendish Philatelic Motions Ltd / David Holmes Philatelist Ltd / Leski & Associates Pty Ltd / Associates Pty Ltd / David Feldman SA / Charles Leski & Associates Pty Ltd / Classic Stamps Ltd / /
Country
Australia / Bulgaria / New Zealand / /
Facility
Sydney Harbour Bridge / /
Organization
American Association of Philatelic Exhibitors / JPS Philatelic Service / Australian Philatelic Federation / Jarretts Philatelic Service / Postal Stationery Society of Australia / /