Help identifying marks on Silver (plate?) Teapot

Hi all, i’ve spent ages trawling the net to try and identify the marks on a teapot from my grandparents estate. Now i’ve found your forum! :smiley:

The full-size image can be found here: … ure021.jpg

Many thanks for any assistance you can offer!

EP B stands for Electro Plated Brittany Metal - it is not silver but an allay with a tiny layer of silver on top.
Maker I dont know.