Specification that I bought my Mercier in as follows:
Frame: 28/26 steel
Bar Tape: kermit green
Brake Levers/Brifters: Mafac
Brake Calipers: Mafac
Shifters: Simplex
Front Derailleur: Simplex
Rear Derailleur: Sachs Huret Eco Mk11
Cassette: 5 speed Maillard – 14 -24
Cranks: Solida
Pedals: Lyotard
Rims: Lyotard on the Front, Nisi on the back
Hubs: Normandy Luxe on the front – non descript on the back
Hub Skewers: Maillard
Tyres: Rather crusty Hutchinsons
Saddle: Selle Royal Course
Weight: Quite a bit but not as heavy as some.