Hi Gang
My local thrift shop has a gaspipe-frame mercier for sale for next to nothing. About 50-52 cm. Nice paint, lousy chrome (lots of tiny rust specks), plastic simplex, 3 pin steel cottered crank (more rust specks), plastic saddle, QR hubs, steel rims. If any francophiles think it's worth the cost of shipping from Canada, plus a small consideration for packing etc., contact me off-list.
Ron Cooley
Saskatoon Canada