Here's my contribution to the late 70s dataset: the saddle is date stamped 1976, so I believe it's a circa 1977 LeMans 23", S/N: JN63076

AFAIK, everything is original down to the bar tape and D.I.D. chain, except for the tires which I've changed, and the aftermarket kickstand which was already installed when I acquired the bike.

Ultralight hi tension tubing
Sugino cranks
Suntour SL FD, VGT Luxe RD, Power shifters
Suntour Perfect 5 speed freewheel
Araya 27 x 1 1/4" chrome rims
Sunshine 5345 hubs
Diacompe center-pulls and turkey wings
SR stem, Sakae Custom handlebars