I've got an old Bertin frame I've had for years (without fork), and I'm
thinking of selling it to a listmember or on eBay, but I really know
very little about it... It's got some interesting shifter braze-ons,
and cool roller cable guides. All Nervex Pro lugs and Nervex BB shell,
Campag. drop-outs, and Reynolds 531 butted tubes... Anyone know what
the vintage is, and if this was the top model? I'm guessing it's late
'50s or early '60s, but not sure.... Here are some pics: