Yesterday, I spent a lovely day at the philatelic convention in Zagreb, where I found some great items, including one nice Imotski letter...
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.