White plaster disc sets with glass of uncertain color. (A) Circular shape with flat bottom and raised rim of triangular cross-section; at center, fragment of thin-walled blown glass inset to form mirror, D: 3 cm., with slightly convex surface; (B) squarish shape with slightly bowed sides and rectangular projections at corners; base flat, sides roughly vertical, upper surface recessed to receive fragment of thin-walled blown glass of uncertain color inset to form mirror, D: about 4.8 cm., with slightly convex surface; (C) disc with scalloped edge in form of nine-pointed star; flat bottom and flat upper surface recessed at center and inset with thin-walled blown glass fragment to form mirror, D: 3.2 cm., with slightly convex surface; (D) circular shape with flat bottom, slightly raised rim and upper surface which rises gently towards center, with recess containing fragment of thin-walled glass inset to form mirror, D: about 3.5 cm., with slightly convex surface.