Documentary images — company attribution uncertain

A404’s format appears derived from A.H. Bull’s flags. The early design is a tapered swallowtail or pennant with the “A” at the hoist; later sources give a plain swallowtail. Rosanoski explicitly rejects the black border in the FOTW rendering of his early image: his black line was a drawing outline for display against white, not a flag edging. Apart from the taper and letter position, its colours are the same as the other FOTW version.

Identity with American West African Line is not established.