

The flag is orange with a white diamond with rounded points, bearing a blue representation of Antwerp’s skyline and black “ABC” letters. Rosanoski’s description places the letters in a lower arc; the Brown-based FOTW illustration puts them in a straight line. The skyline is described as including the Boerentoren and Notre-Dame Cathedral, with a possible identification of the Steen. His 1988 observation of TNT Express noted royal blue and raised possible white outlining of the letters and a reddish-orange flag field. Revisiting the notes, he concluded that both funnel and flag had apparently been seen and the flag was orange. A starboard photograph of De Loris dated 15 January 1991 confirms rounded diamond points and no outlining of the funnel letters. Brown 1995 omits the funnel letters, possibly through a printing problem.
A table flag offered on German eBay in February 2007 is bright red, with a vertically elongated white diamond. It shows the Boerentoren on the left and the cathedral’s completed and unfinished towers on the right in blue, with black initials in a curved line on the silhouette. Its stated size is about 14 by 22 cm. A photograph at Port Chalmers on 15 January 1991 shows an orange funnel with the same logo. Jarig Bakker and Jan Mertens question whether the diamond had been misrendered in the published source and whether the photographed red flag was actually orange; they suggest an orange-field version of the table-flag design, without settling the issue.
The archive treats ABC Containerline as an alias, whereas external records distinguish legal entities/roles. The linked ABC liveries need that distinction preserved; Belgian jurisdiction agrees.