British hallmark mystery?

Help - I’ve been staring at hallmarks for days and can’t find out about this one. I have two grape pattern oval covered servers with a left facing lion (British sterling I think), a bell with horizontal lines behind it and sort of a wilting fleur de lis. The only bell I can find is for Roberts or Simmons that closed shop in 1848. Any clues? Also, the marks are engraved rather than stamped - does this matter? There are three stamped marks underneath: look like stylized deer on left and right and the bell again in the middle. Any help would be greatly appreciated.
IMGP4686.JPG
IMGP4688.JPG

That is an American set of silverplate marks.
Check out the Barbour Silver Company here:
925-1000.com/silverplate_B.html