50 H. Stamp exhibition Kaschau with vertical, right lying hand stamp overprints "we are free! Plus swastika" in the vertical gutter pair, with cancel of liberation "Liberec day the liberation 10.10.38" on faultless letter piece, edition 400 piece, of it few as gutter pair, photo expertize Brunel VP (2018) "the condition is perfect. The gutter pair with vertical overprint is extremely rare. ", Michel 3000.-