Plate or cup in molded crystal of the nineteenth century

Old plate or empty molded crystal pocket. No signature but given that it is a nineteenth century work, it is possible that it is baccarat or saint louis (at the time when the factories simply affixed a paper label). Quality work. Neither crack nor shine. It was originally a dessert plate. Note the marli of the plate is a little bleached because it served as a pot cover (limestone?). Diameter: 19.5 cms. Weight: 420 grs. 061022/10.

Ref. : 6U1371Y3