Hi
Have a look at Web under American marks.
http://www.925-1000.com/americansilver_W.html
Web made a good number of sterling photo frames, sterling weighted candlesticks,and sterling rimmed glass compotes in the 1950s-1960s. Usually the sterling is the lesser part of the product.
Most likely the salad servers were made in France specifically on order by Web, who then added the sterling tips before marketing them in the US.
Regards
DR