A couple of years ago I tried to find out more about the "super de luxe"-type PX10s (see seat tube sticker), like the TO's one. To no avail:
http://www.bikeforums.net/classic-vi...xe-1960-s.html

Particular informations on these special PX10s (e.g. from catalogs or owners who bought one new at the time) seem to be non-existant.
My personal impression is that these olympic rings bikes were perhaps some kind of posh variant, for a different clientele, offered parallel and contrasting to the racy checkerboard "team" livery (below):



picture from: Piedmont Velo Sports: Roger Pingeon