40 Francs pattern uniface by Brenet

Nicolas-Guy Brenet submitted this uniface tin pattern during the competition held following Louis XVIII's death in 1824, as the Monnaie de Paris solicited new designs for Charles X's coinage. Uniface strikes in tin were the standard submission format for die trials of this period, allowing the engravers' committee to evaluate relief and lettering independently of a completed reverse pairing. Brenet's design was ultimately passed over; the commission went to Nicolas-Pierre Tiolier, whose portrait of Charles X entered circulation the following year.