MATSON NAVIGATION CO. INC.
image by Joe McMillan, 29 October 2001
The funnel changed from M91 to M90 in the early 1930s. Talbot-Booth 1936 shows a black M on M90, while Ships & The Sea 1936 records a change to blue. Oceanic Steamship also used the funnel, retaining its own flag in Stewart’s 1963 account.