According to eBay, that platter I mentioned yesterday was made in Germany Saar ... everything else so far has been stamped France Saar.

So the platter must have been made after the Saarland returned to Germany in 1955?

Update: the Saarland returned to Germany on 1 January, 1957, so everything marked "France-Saar" must have been made between 1947 and 1956, and anything marked "Germany Saar" 1957 onwards.[1]