DUBROVAČKA PLOVIDBA ACKIONARSKO DRUSTVO.

The flag is red over blue with white D and P flanking a white anchor. Larousse 1930 gives thin letters and an unfouled anchor, each half the flag’s height, spaced across the middle three fifths of its length. Talbot-Booth keeps the letters clear of the anchor flukes; a 1936–37 travel brochure places them above the flukes and resembles D246. The sources assign D245 to cargo ships and D246 to passenger ships, with Merchant Ships 1944 saying cargo vessels gave up D245 about 1939. D246’s black funnel top is narrow in Jordan but medium in the cited photograph of Kralji Aleksandar I.

Isaiæ’s more elaborate version retains the red-over-blue field, anchor and DP. Differences in the emblem’s proportions may reflect artistic licence. Heimer suggests that a later Brown illustration could simply repeat an older flag, though use until 1955 was possible. Rosanoski instead relates its use to the company’s 1947 nationalisation. Heimer also interprets the colours as deriving from the Croatian tricolour; these explanations remain attributed rather than resolved.