GREEN STENCILLED LOZENGE S.(18)63, INCISED POTTER'S MARK DG 61-4 V, THE FORM DESIGNED BY PEYRE OR DIETERLE

See Bernard Bumpus, Pâte-sur-Pâte, the Art of Ceramic Relief Decoration, 1849-1992, London, 1992, pp. 18-20 figs. 1-3 for three early celadon ground vase 'Ly' decorated in pâte-sur-pâte. Celadon ground is produced from an oxide of chrome, one of the few colours which could withstand the high temperature kiln needed for pâte dure at the time. Throughout the 1850's Reginault directed experiments to vary the range of ground colours through the introduction of other oxides. Gély's successes to this end were exhibited in London in 1862. Given its kiln flaws and the firing date of 1863, the present vase was likely part of these experiments- rare as few flawed examples were not destroyed.