S26338
Karlsbad 1938 - 1 Crown Masaryk in a vertical pair with Karlsbad overprint, the below stamp with inverted overprint, so this is a very rare tete-beche from right upper sheet corner on letter, maybe a unique piece and with certificate by Brunel, VPEV
S25116
coat of arms + overprint 1938 - Karlsbad overprint on Czech postcard sent to Dresden and with certificate by Brunel, VPEV