1856 British Guiana One-Cent Magenta (replica) – World’s Rarest Stamp By admin - December 12, 2014 0 581 FacebookXPinterestWhatsAppEmail Related Posts:World’s Rarest Stamp Lands at National Postal MuseumNew York to auction world's most famous stampPrime Minister Brigadier (Ret'd), Mark Phillips…Guyana-Venezuela: The “controversy” over the…