AUSTRIA 1851: BLUE MERCURY - BLOCK OF 80
EXP-00182
Further information
The „Blue Mercury“ were the first newspaper stamps in the world. They were issued on January 1, 1851.
This incomplete sheet of 80 stamps is one of the largest multiples existing and an important item of classic philately.
It is a part of collections of the Czech Postal museum in Prague:
www.postovnimuzeum.cz
