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.