Karlovy Vary (CZ)
From Stamps of the World
Karlovy Vary (Carlsbad) is a spa town (49781 inhabitants in 2015) situated in western Bohemia, on the confluence of the rivers Ohře and Teplá. It is named after King of Bohemia and Holy Roman Emperor Charles IV, who founded the city in 1370. It is historically famous for its hot springs.
Postmark in the Czech Republic
Postmark in Czechoslovakia era
Postmarks in Austria-Hungary era (1867-1918)
The FISCHERN post office dates from 1871.
Postmark in Austrian Empire Bohemia Crownland
The post office opened before 1850 with the (Austrian) name CARSLBAD.