F.B.R. has always been made in the U.S.A. never in China (these are cheap knockoffs, sometimes sold at not-so-cheap prices.) and to tell if you have silver plate or sterling, look for the stamp saying "silver plate" (meaning silver plating over another metal such as copper...
Try comparing the marks on your silver wares to images found on trusted online resources. Once you've confirmed who the maker is, you can review online reference guides to find out your silver's pattern. Another way to approach the identification process is to enlist the help of a certified...