Postby dognose » Wed Sep 24, 2008 2:25 pm
Hi,
I wondered if it was a date mark, it looks a good match for London 1730, but I would also expect there to be other marks and would be surprised if they had worn away, leaving just this one.
Have you had it tested? In the period 1575-1798 there was only one standard, 22 carat. If it turned out to be anything less, then this thought can be dismissed.
Trev.
.