Please Help with Identifying a Mark-Sheffield

Hello, I just picked up this silverplate sugar scuttle at a yard sale for $5. I was just wondering if anyone knows who the maker is, so I can try to figure out how old it is.
Thank you!

It’s Cooper Bros & Sons of Sheffield, but you may have difficulty with dating as they became Cooper Bros & Sons in 1897 and were active for another 75 years approximately.