French potter Jacques Sicard studied luster glazing during a long period of employment with Clément Massier. The S.A.Weller Company in Zanesville, Ohio, hired Sicard in 1901 to produce a line of iridescent art pottery for them. Sicard's work for Weller is generally signed 'Sicardo' in the glaze on the side of the vessel (pictured). Despite positive critical notice, "Sicardo" wares were not profitable. Successfully glazed pieces were difficult to produce and there was a high percentage of breakage or misfiring in the kiln. Weller discontinued the line and Sicard returned to the south of France in 1907.