
The stag emblem derives from the crest of a North Country branch of the Robinson family and the first vessel’s name. The flag was used by the early steamers in 1871 and may have been adopted in 1846, but its adoption date is unknown.
Zinna used a funnel variation while chartered to Central Soya Corporation. Brown 1926–43 and Talbot-Booth 1936–38 show the funnel stag facing aft; a photograph of Photinia shows it facing forward on the starboard side. Talbot-Booth places the stag on a white-and-red wreath, while the 1959 and 1963 funnel accounts show it on white ground. The National Maritime Museum flag, attributed to Stag Line and dated about 1951, has the stag standing on a white rope. Sources assign the livery to both Robinson and Stag Line.