ÉTABLISSEMENTS MAUREL & PROM.

The ampersand differs between sources: Lloyd Reedereiflaggen places a smaller one at mid-height, while La Marine Marchande Française puts it at the baseline. Ships & The Sea treats this funnel as an alternative to M314; Jordan’s “HP” monogram description is unclear.

No separate flag is given for M314; continuation of the earlier flag is assumed because the funnel is described as an alternative.

Rosanoski considers the M316 flag suspect.

The remaining historical variants are retained from US Navy, Brown, Mitchell and Pavillon Compagnies Maritimes Françaises.

For the later flag, FOTW treats the emblem as an upright ampersand within an orange frame. Rosanoski regards that portrayal as incorrect: the animated website image has an orange rather than blue outline, and allowance for the flag’s angle suggests a different symbol, possibly connected with the oil business. He does not establish its meaning.