Help identifying marks on a fish knife

Hi all, my name is Linda and I’m new to the site. I’m trying to find what these marks mean on my mom’s fish set. I don’t think they’re English, but I could be wrong! I don’t know much about identifying silver marks. Any help is much appreciated!
fish knife.jpg

Welcome to the site, Linda.

AT&Co are Ainsworth, Taylor & Co of Birmingham. Unfortunately it is an electroplate mark and not a silver mark.