Teapot Hallmarks question

Hello all,
I would be grateful for any help in identifying the attached set of hallmarks on a silver teapot.

Thank you in advance for any help or advice

-eric
Teapot.jpg

This is not strictly a hallmark - it is actually the trademark of Deykin & Sons of Birmingham. Your teapot is silverplate, not silver.

Thank you for your prompt reply and the information - most kind

-eric