HALFDAN DITLEV-SIMONSEN & CO. A/S.

Jordan describes a yellow funnel, with Halfdan’s red band separated from the black top by a narrow yellow band. The other two companies have the same general arrangement without the narrowness specified. Rosanoski interprets the stated house flag on red as the white diagonal and letters on the red band.

Slides show an almost white pale-yellow funnel, including Valeeta on 13 August 1968. Other Skagerak and website photographs support darker yellow. The port-side slide has the Brown 1958 flag form with a mast; Valeeta’s starboard view reverses the diagonal, described as Pbds, but rearranges the letters to read normally.

Brown 1951 and 1958 use a Pbds diagonal, while sources from Stewart 1963 use Pbd. Rosanoski suspects a flag interpretation based on the starboard funnel view instead of port. The black top became narrower, specified in Ocean Ships 1967. A US Navy note calls the angled emblem D268, although the source list uses D258.