SNCF Regional Passenger Cars.
A set of inox coaches for suburban trains ("RIO" coaches), very similar to Z 6100. In fact, those carriages were planned to be coupled with further motorcars Z 6100, which were finally never bought. This is why they were used with locomotive in push-pull duties.

Photo by Ray Soper, Brampton, Ontario, Canada. (Ray Soper)

Scan by Michael Taylor www.MichaelTaylor.ca