20 Heller national coat of arms vertical perforated from rolls with hand stamp overprint "Karlovy Vary 1. X. 1938 plus swastika", strip of three on faultless letter piece with cancellation adjusted date stamp Karlovy Vary 1 4. X. 38, issued only 265 stamps, unsigned, photo expertize Brunel VP (2011) "the condition is perfect. whose strip of three is a the largest known unit of this stamp. ", Michel 4.500.-