Engraving (with Marie-Josée Roy): The works listed in the Artwork > Roy-Prieur section are pieces that Marie-Josée Roy has conceptualized and executed, which Jérôme has embellished and enhanced afterwards. There are others where Jérôme isolated the imagery, Marie-Josée created the piece and he added the finishing touches by engraving on it. The works are always made on aluminum, brass, copper or steel.