Stem paling Bernilai

Umangai... stempun ado hargo berjuta-juta!

Sailing Ship British Guiana
One Cent Black Magenta - British Guyana - 1856

History:
The British colony of Guiana ran out of stamps in 1856. Awaiting a new supply from London, the governor asked the local newspaper to print a batch of 1 cent and 4 cent stamps. The stamps were printed on a rough paper in an unusual rectangular shape. In 1973 a boy discovered this stamp in his attic. It was last sold to the Dupont family in 1980 for just under USD$ 1m.

Value

Over USD$ 3m
Nr pressed: unknown
Nr in existence: 1 

 3 Skilling Sverige
Yellow - Sweden - 1885
History:
A printing error resulted in one of the most expensive and unique stamps in the world. A 3 Skilling stamp normally printed on green paper was printed on yellow paper belonging to the 3 Skilling stamp. A schoolboy found this stamp in his grandfather's collection. There is only known to be one copy of this stamp in existence which sold for $USD 2.3m in 1996

Value

Over USD$ 2.7m
Nr pressed: unknown
Nr in existence: 1