This is the set of 4 imperforate stamps that depicts Hradcany Castle in Prague. Hradcany 20h carmine block of four was issued in October 1918. Hradcany stamps are the first issue of Czechoslovakia that offers an affordable treat for the philatelic specialist. in March, 2017, Hradcany 20h carmine block of 4 was an extraordinary lot at Burda auction, sold for US.$15,714.
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