5 Heller postage due stamp with hand stamp overprint \"Karlovy Vary 1. X. 1938+swastika\", corner margin pieces lower right with plate number \"1\", cancelled \"Karlovy Vary 1 4. X. 38\" on piece, faultless condition, issued only 134 examples - of it actual only 1 or 2 pieces with plate number possible, expertise Robert Brunel VP (2023) : \"the condition is perfect. Pieces with plate number are rare. \"