Postage Due
Czechoslovakia, Michel Porto 12, Mint never hinged
1919. CESKOSLOVENSKO. Postage due. DOPLATIT. 500 Heller. Never hinged.
Czechoslovakia, Michel Porto 12, Cancelled
1919. CESKOSLOVENSKO. Postage due. DOPLATIT. 500 Heller.
Czechoslovakia, Michel Porto 13, Mint never hinged
1919. CESKOSLOVENSKO. Postage due. DOPLATIT. 1000 Heller. Never hinged.
Czechoslovakia, Michel Porto 13, Cancelled
1919. CESKOSLOVENSKO. Postage due. DOPLATIT. 1000 Heller.
Czechoslovakia, Michel Porto 20, Cancelled
1923. CESKOSLOVENSKO. Postage due. DOPLATIT. 10 Heller on 3 H. Hradschin.
Czechoslovakia, Michel Porto 16, Cancelled
1922. CESKOSLOVENSKO. Postage due. DOPLATIT. 50 Heller on 75 H. Hradschin.
Czechoslovakia, Michel Porto 24, Cancelled
1923. CESKOSLOVENSKO. Postage due. DOPLATIT. 100 Heller on 120 H. Hradschin.
Czechoslovakia, Michel Porto 44, Cancelled
1926. CESKOSLOVENSKO. Postage due. DOPLATIT. 50 Heller on 300 H. Algorie.
Czechoslovakia, Michel Porto 45, Cancelled
1926. CESKOSLOVENSKO. Postage due. DOPLATIT. 60 Heller on 400 H. Algorie.
Czechoslovakia, Michel Porto 25, Cancelled
1924. CESKOSLOVENSKO. Postage due. DOPLATIT. 50 on 400 H.
Czechoslovakia, Michel Porto 27, Cancelled
1924. CESKOSLOVENSKO. Postage due. DOPLATIT. 100 on 400 H.
Czechoslovakia, Michel Porto 34, Cancelled
1925. CESKOSLOVENSKO. Postage due. DOPLATIT. 100 on 250 H.