IGNAZIO MESSINA & COMPAGNIA SPA.

The house flag is a red pennant with a white cross and black CM monogram. US Navy 1961 confines the letters to the cross’s intersection; Brown makes them larger, and later Brown editions move the intersection nearer the hoist. Another historical illustration has the C encircling the M. Mitchell apparently saw the funnel at Malta in 1958.

The alternative replaces the monogram with a black funnel panel bearing a white band above a white star. Rosanoski’s 2002 comment questioned whether this was an actual flag or merely a website navigation button; later website evidence showed both forms, leaving their significance unclear. Ogaden’s monochrome photograph confirms a large funnel star. On Jolly Smeraldo in April 2007, painted flapping flags face forward on both sides of the superstructure, with black cross outlines to port, white outlines to starboard and 1921 beneath the tail. The illustrated funnel panel’s rounded top and bottom are questioned in the source.

M611 is recorded for Jolly Blu.