Polychrome opaque and transparent non-lead glass: flashed opal, opal-flashed antique, antique glass; cut glass, assembled, adhered on colorless panel, selected pieces "plated" with pieces of colorless. (A) Square panel entirely covered with abstract pattern of non-leaded irregular pieces assembled mosaic style. Design dominated by broad bright red zig-zag of opaque bright red; (B) same technique as "A" but with glass pieces dominated by rectangular and squared shapes, abstract design and shape masked in cut-out frame of cardboard painted black.