Souvenir sheet issue \"BRATISLAVA 1937\" with handstamp overprints \"we are free! Plus swastika\", centric cancellation with special cancel \"Liberec 1 8 oct 1938\", faultless condition, issued only 350 examples, expertized Huebner, Mahr BPP and expertise Robert Brunel VP (2023) \"the condition is perfect. \", Michel 1.400.-