The 1945 Zagreb issue stamps were released on June 25th, 1945. Before that only cache payment was possible (however, even after the stamps were issued, most of the post offices outside of Zagreb did not receive them, so the cache only payment continued...).
Forerunner of the 1945 Zagreb provisional issue, letter sent from Vukovar (13.VI.45) to Zaječar Serbia, properly charged of 80 kn in cash (Zagreb tariff), censored by the censor in Vukovar.
Vukovar censor mark.
