Yesterday, I spent a lovely day at the philatelic convention in Zagreb, where I found some great items, including one nice Imotski letter...
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1943 Imotski, official letter sent from Imotski (handwritten 10.5.43) to Zagreb (14.5.43) correctly franked with 7kn for the second weight letter, cancelled with temporary provisional rubber postmark "POŠTA - IMOTSKI". Certificate Ercegović.