Originally Posted by
Dirtdrop
It's either a PA10 or a PR10. Either way, it's had a sticker upgrade. The diagonal 531 sticker means the entire frame and fork are DB 531. The PR10 is 531 in the 3 main tubes and the PA10 is not 531. ...
From the seatpost diameter, it is extremely easy to tell a PA-10, with its gaspipe UO-8 plain gauge carbon steel tubing, from a
PR-10, which is a PX-10 double butted Reynolds 531 main triangle ("3 tubes renforces") with plain carbon steel forks and stays. The
PR-10 and PX-10 take a 26.4mm seatpost, whereas the UO-8 and PA-10 take a smaller-diameter post with a thin steel shim.
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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