Lot Essay
                                The 'C' couronné poinçon was a tax mark applied to alloys containing copper, between March 1745 and February 1749. 
Jean-Pierre Courtois (d. Paris 1772), Ouvrier libre (1757) and appointed Marchand Horloger Privilegie du Roi suivant le Cour on 13 September 1765. He was the son of Jean-Baptiste, clockmaker.
                        Jean-Pierre Courtois (d. Paris 1772), Ouvrier libre (1757) and appointed Marchand Horloger Privilegie du Roi suivant le Cour on 13 September 1765. He was the son of Jean-Baptiste, clockmaker.
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