1984, French built model. Carbolite 103 indicates a lower end model, I'm unsure which one, as I get confused by the bewildering array of Peugeot models. A "b" or a "y" prior to the # indicates an eighties bike, and the first number of the serial # is the last number of the year (i.e. 4=1984).

Some info on serial numbers here:
http://www.classicrendezvous.com/Fra...10_history.htm

Catalogs here (although incomplete, and tend to focus on the higher end):
http://home.wanadoo.nl/peugeotshow/

Hope this helps.