
The use of this flag is unclear. Ships listed under Pickands, Mather, including Herbert C. Jackson, show Interlake funnels, suggesting no separate company funnel. The flag appears on a jug made in 1953. A 1966 sugar bowl made for Pickands Mather Steamship–Interlake carries the group logo with orange instead of red. The website assigns the flag to Pickands-Mather Steamship for 1883–1966.