Delmas-Vieljeux — historical poster flag
image by Jorge Candeias, 15 December 2004
The earlier Delmas-Vieljeux flag has white V and D letters flanking the wheel, as on the Medea poster. Sandy Hook was the pseudonym of painter Georges Taboureau; the poster is the documentary basis cited by Jan Mertens.
Exact dates, wheel shapes and shades remain qualified.