Die seltenste Briefmarke der Welt, ein Unikat einer 1-Cent-Marke aus British Guiana aus dem Jahr 1856, ist bei Sothebys für 9,5 Millionen Dollar versteigert worden. Die Tagesschau hat ein paar oberflächliche Infos zum Verkauf, die interessanteren Details stehen auf dem History Blog:
Printed in black ink on magenta colored paper, this simple stamp was an emergency issue. British Guiana, on the northern coast of South America, had been a British colony since the Napoleonic Wars. Originally three separate colonies — Essequibo, Demerara and Berbice — it was united as a single colony in 1833. […]
The one-cent magenta is an octagonal stamp one by 1.25 inches in dimension. It is printed with the image of a three-masted ship in the middle with the colony’s Latin motto “Damus Petimus Que Vicissim” (We give and expect in return) above and below the ship. Postmaster Dalton was apparently unimpressed with the issue, believing them susceptible to forgery. To thwart any attempts to forge the stamps, Dalton had post office workers initial every stamp. The one-cent magenta going up for auction was initialed E.D.W. by the postal clerk E.D. Wight.
History Blog: One-cent stamp could cost $20 million at auction