CROATIA CENSORSHIP: violet single-line Z1 "Cenzura Osijek" on piece with Yugoslavia 0.50 Dinara orange, 1.50 Dinara red, single-circle OSIJEK 1 17 16.4.1941 and violet single-line Z1 "Cenzura Osijek", possibly Yugoslav censorship, supported by very early date and Cyrillic postmark inscriptions not yet removed, age and usage wear typical of the period.