Teapot help

We were left a bunch of items from my wife's great aunt including several tea sets. Some have been easy to figure out as they have words on the bottom that I can search for. This one just has that symbol in second picture. It has matching small cups, saucers, milk and sugar holders all with that symbol. We thought we might pass some of them to other family members and would like to tell them what they are when we do. I am not sure how to find who made it or when. Any help would be appreciated. The other sets seem to be have been made in the UK. So maybe this one may be as well.