40 H. Postal stamp with overprint vertical overprint "Karlovy Vary 1. X. 1938 plus swastika" in dark rose, neat cancelled with first day postmark "Karlovy Vary 1 4 d -1. X. 38-14" on piece, expertise Robert Brunel VP (2020) "the condition is perfect. The stamp with lying overprint is extremely rare. With first day cancellation has up to now no further copy produce. ", Michel 1.500.- plus