50 H. Postal stamp \"stamp exhibition Kaschau\" with handstamp \"we are free! Plus swastika\", four values on piece with cancellation through special cancel \"Liberec 1 German Reichspost 8. X. 1938\", issued only 400 examples - there are those letter pieces with several values already rarities, photo expertize Robert Brunel VP (2023) \"the condition is perfect. \", Michel 180.-