1922 whole Us postal order with emblem and valuable 20h for amount of 500CZK, postal-charge 5,50CZK postpaid with stmp Hav 300h + issue Chainbreaker 100h and 50h and on reverse issue Chainbreaker 100h, posting MC PRAGUE 1/ 23.V.22, arrival postmark TRNOVEC 24.V.22, supplemented with red round cancel. BOHEMIA Czechoslovak foreign bank in Prague, on reverse straight line postmark Bank of Europe, New York; only fold, rare whole blank form bank credit notes!