1906-1938 comp. 12 pcs of entires with perfins, i.a. Wichterle & Kovařík - Prostějov, Kneisl - Všetuly (!), F. Wawerka - Lipník, invoice with revenue and perfin f. L. Popper - Trieste, used perfins on/for postcards 2x, Un response mailing Stein and Fortuna 4x; good condition