50 H. To 2 Kc. Hl. Methodius with hand stamp overprint "we are free! Plus swastika", neat cancelled with special cancel "Liberec German Reichspost eighth of October 1938 Heil Hitler! " on blanko-envelope, expertized Hübner and Reibg HP, photo expertize Brunel VP (2018) : "the condition is perfect. The set is extremely rare", Michel 15.000.-, hardly ever offered