Further supporting Poguemahone's suggestion is that UO-8s were/are FAR more common than PX-10s, so if you're hoping to win the PX-10 jackpot, the odds are stacked very heavily against you. Look for any remnant of a Reynolds 531 decal; a full Reynolds frame denotes a sought-after PX-10, whereas a horizontally-printed 531 decal bearing the words "3 Tubes Renforces" denotes the next-lower model, the
PR-10, later denoted PKN-10.
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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