The assayer is Nikolay Dubrovin (1822-1855 Moscow) Who will be the silversmith? At PL, such marks are #2961 and #2962, however, it only fits 2961 after the period of activity. Or is it someone else?
Regards
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500 punches annually !I think it also worth noting, is the huge amount of punches that were supplied to the LAO by the engraver, in 1820 John Smith was recorded as supplying nearly 500 punches annually to the Company.