My 1980 Peugeot PKN-10 had the worst workmanship I have seen on any supposedly mid-to-high-end frameset. There were visible seams on the backs of the fork blades and visible brazing gaps at the rear dropouts. My Bianchi from the same period looks far better, as do my two Capos from 20 years earlier, one of which shows a bit of splatter under the seat cluster lug.
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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