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In the case of this object this can be done by:
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Miniature portrait of a Lady by Charles Mancourt
Maker:  Maker Unknown
Miniature portrait of a Lady by Charles Mancourt, signed with initials CM and the date 1756 wearing fanciful black and pink dress with lace collar and may stranded pearl necklace, enamel oval. 1 3/4in. high - gold frame.
THIS ARTWORK IS LOCATED IN:Wiltshire
This item can be viewed by appointment through the contact shown