Speaking of De Rosas, this was always a weird one - WC stripes, but with years representing Eddy Merckx's three Super Prestige Pernod (precursor to the World Cup/World Tour) titles on it. Not to mention the "Arc-en-cil"- maybe referencing his 1974 title?
(Also infamous for causing a bunch of early 80s De Rosa Professionals to be called "Super Prestiges"