Sterling silver cup

[Paradis]

Hello, I will need verifying if this is in fact a sterling silver cup by E.S. Barnsley and co. (even though the E looks weird, it is definitely E.S.B) from 1908 in Birmingham. My mom doubts that it could be sterling since it is quite heavy (weighs 278g).

[user701]

It is by E.S. Barnsley and co and the date is 1903

It may have a weighted base, but it is hard to tell from these photos to say if it weighted or not.

[Paradis]

Thanks for the verification. No, I checked and the base is hollow. Do you want me to post a picture, because I saw some sort of serial number inside it and I don't know if it has any importance to it.