Broadway & Co silver napkin ring - unable to date

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I have been trying to find out about the hallmark on this napkin ring. It was made by Broadway and Co, Birmingham, but I cannot make out the date letter. Could be an O or a C possibly. Broadway and Co didn't start until 1900 so it is obviously after that! Can anyone help please?!

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[Granmaa]

Looks like 1938 to me.

Miles

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I guess you think it is an O then, thanks very much Miles