Hall mark need help - Owl Sugar Shaker

Hello

Please can you help me identify the hallmark on a Silver Owl Sugar Shaker for my uncle.

The hallmark is like nothing I’ve been able to find on the internet, the top symbol is 3 towers and it looks like the letters SEM below it, The shaker is lined with a plastic material so it can’t be very old.

I have attached some photo’s to help identify it.

Thanks for your help

Craig
3.jpg
4.jpg

Hi,
The ‘letters’ below the ‘castle’ look to me like a heavily disguised ‘EPM’ - which would mean it is of Electro Plated Metal.
Regards
John

Thanks for the prompt reply

Would the towers \ castle give you a clue as to where this has come from? Chinese or US import perhaps?

Thanks
Craig

That is a silverplate mark used by the American firm Corbell & Company.