50 H. Briefmarkenausstellung Pilsen in a horizontal se-tenant pair with handstamped overprint "Wir sind frei! + Swastika" - this also on the decorative field! perfectly struck with special postmark "Postamt Maffersdorf Birthplace of Konrad Henlein 8. October. 1938" on a piece of mail, edition of 900 pieces - of which only a few as a se-tenant pair with overprinted decorative field, photo certificate Brunel VP (2020) "The condition is flawless.", Michel 300.-