

I assume the "A.T." is a makers mark - I am not 100% sure about the 'A', but the 'T' is definitely right. The marks are absolutely tiny. The small 'm' which I take to be a date letter is also very hard to see but I think it is right. I am most interested in the kind of upside down omega kind of symbol.
Apologies if I have commited any 'faux pas', this is the first time of posting on this forum. Thanks[/img]