It is an early 1970s PX-10E, probably circa 1973. I don't buy the "French racing team" BS in the advert, and those certainly are lousy pictures. If you insist on making it a fixed gear, at least have the decency not to cut off the derailleur hanger or otherwise ruin it for a potential future owner who might wish to turn it back into a proper road bike with either vintage or updated components.
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069