Help with tea set markings

I was wondering if I could get some help to identify the markings on a tea set that belongs to my grandfather. He is 97 years old and can’t remember how he acquired it or if it’s of any value.

I’ve been trying to research myself however after a couple weeks of trying every google search I can think of I feel like I am completely stuck.

Appreciate any help or direction you can give me. Thank you


You might see if you can find Italian silver-plate makers and see if you can identify the mark. Looks like it was made for export since it’s in English. A1 generally means it’s their best quality silver-plate.