In the spring of 1944, the Croatian Kuna was introduced as the regular currency. The postage was denominated in Kuna as follows: Postcard 2.00 Kn, Ordinary Letter 3.50 Kn, Registration Fee 9.00 Kn, and Express Delivery Fee 10.00 Kn. As all stamps were overprinted with the 3.50 Kn face value and in the absence of appropriate denominations, minor tariff divergences of one or two Kuna were tolerated. Mixed frankings with the First Šibenik Issue denominated in Italian Lira was calculated based on 1.00 Lira = 4.00 Kn.
Registered letter, franked with 10.50 kn and 80 cents, surcharged 2 kn with War Tax stamp, mixed franking of first and second Šibenik issue, sent from Šibenik (26.VII.44) to Osijek (4.VIII.44), censored in Osijek "CENZURA / 43 / OSIJEK". Since the addressee travelled away ("Otputovao / Parti"), the letter was returned (handwritten "Retur / Šibenik") via Split (21.VIII.44) to Šibenik. Certificate Zrinjšćak.
