50 Kop. Black on gray blue with printing on the back and additional inverted overprint in type I, impeccable as issued without gum. It gave only a sheet from 25 pieces, of these today only still a few stamps have been preserved are. Extremely rare! Twice signed Mikulski and photo expertize Mikulski: \"genuine detailed, perfect and very fine. \" Michel 3500.-

3, 00 Krb. Postal stamp, type I, properly franked single franking on registered letter with cancellation \"Dombrovicsa 4.11.41\" to Sarny with on the back arrival cancel \"Sarni a 6.11.41\", slight traces of use, photo expertize Krischke BPP: \"the letter is properly franked franked also used. Such commercially used letters are extremely rare. \", Michel 4.500.-