SCREAMING deal at $40! I'm saying 1972 - plain Nervex DuBois lugs painted black and the classic comfy geometry only happened that year. Before and after, with those graphics, it's usually Nervex Professional lugs. The PX-10LE also used the plain DuBois lugs, but those were built with much steeper angles and the lugs were left white with gold lining. Nothing is stock on this bike, but it's still metric gauge 531, so if its your size, enjoy! Again, awesome score!