www.925-1000.com

Thank you so much for your help Mike, it has been very interesting. Think I may just go up in the attic and see what other objects are up there.
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Mike, thankyou for your information. Unfortunately as you say the right hand mark is not at all clear even when held at different angles and there are no visible markings anywhere else on the box. It possibly looks like the shape of an m on the top? although it looks more like a block plain letter t...

I have what I believe is an old ring box that I have found in my late mothers posessions. Through looking at the hallmark and searching the information on this site I believe that it is from the chester assay office and made by Synyer & Beddoes. It appears to have the letter z, S*B, lion, two wh...