


W50 is assigned to Deutsch-Amerikanische by Massary and Lloyd Reedereiflaggen. Jordan describes a black funnel with a red R interrupting a band, black to the left and red to the right, on a broad white band; Rosanoski notes that the white may merge. He considers the flag to have continued after the Esso renaming. The Biedenkarten example likewise shows a black-white-red tricolour for Esso Tankschiffreederei.
W475 is described as a vertical black-white-red tricolour with a red serifed R on white. Rosanoski says Schneider’s flowing R, like that in W476, differs from the basic R in the 1956 source. W476, from marcollect, has a broader red stripe. From 1957 the livery is catalogued under Esso as E54, retained here as a contextual reference.