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Looks like 1776 to me based on the outlines of the punches. My eyesight offers no help with the maker's first initial, but if it is a W.C mark I confess that I give up when it comes to identifying which of the many WCs around this date. Maybe somebody else is able to be more confident.
At least the pellet is clearly visible in the center, and the "C" is very distinct, but even so, it looks like we have reached the limit of perception here.
The base of the first letter with the serif, does not appear to be a 'W' to me, more upright like 'H', 'I', 'M', 'N' or 'Y', but I find no stand out candidate.