Help with identifying marks on flatware - L&W * S

Hi, I have some flatware with L&W (I know this is Lee & Wigfull, Sheffield) then an asterisk and letter S, what does this mean? It’s a set of 5 spoons, Are they silver or just plate?
marks.jpg

The is a silver plate mark of Lee & Wigfull, which you correctily identifed, with the ‘S’, I think, simply meaning Sheffield.
The asterisk would have another meaning whch I am unsure of - possibly date period.

Regards
John

Great, thanks John. I trawled the web a bit more after I posted this and I think the asterisk is connected with it being silver plate, from what I could gather.