50 H. Briefmarkenausstellung Pilsen in a horizontal se-tenant pair with hand-stamped imprint "Wir sind frei! + Swastika", perfectly struck with special postmark "Maffersdorf Birthplace of Konrad Heinlein 8. October 1938" on a piece of mail, edition of 900 pieces - of which only a few as a se-tenant pair, photographic finding Brunel VP (2012) "The condition is flawless.", Michel 300.-