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In March 1944, the post office of Šibenik urgently needed 3.50 Kn stamps (standard letter postage), but they were never delivered because it was war time.
Therefore, the post office board decided to use numerous remaining Italian definitive stamps from the 1929 issue and overprint it with the new value and the country name.
Overprint was done by a local print company in Šibenik.
| Mi 1 | 3,50 kn on 10 c | 5.700 |
| Mi 2 | 3,50 kn on 20 c | 4.700 |
| Mi 3 | 3,50 kn on 25 c | 12.700 |
| Mi 4 | 3,50 kn on 30 c | 13.500 |
| Mi 5 | 3,50 kn on 50 c | 24.200 |
Sheets
Stamps were overprinted in sheets of 100 stamps.
Postcard
Simultaneously with the stamp issue, a postcard (Italian postcard form with the imprint:
“VINCEREMO,” 30-cent postage stamp) was also issued in a print run of 16.900 pieces, bearing the imprint “Kn. 2” and the Italian country name being overprinted with a bar.
