2010 Pof.VZS01, Four-leaf clover - Fifinka, production flaw - shift pin hole downward 2010 Pof.VZS03, Mucha Z, production flaw - oblique pin hole, distinct mainly on stmp R, exceptional! 2015 stamp-booklet Exhibition CHOMUTOV 2015, on reverse 2 hologramy on/for sequence (shifted against sequence 0 1mm vertical and little horiz.); kuriozní and very unusual