FIUME

Fiume was formerly part of Hungary and used their stamps for postage until 1919, when Fiume began to issue their own stamps. In 1924 the stamps of Fiume were replaced with stamps of Italy. Some examples of Fiume stamps is as follows: FIUME (Overprint on stamps of Hungary)
FIUME
FIVME
REGNO D'ITALIA or ANNESSIONE ALL"ITALIA (Overprinted on stamps of Fiume)