Lot Essay
See an anonymous sale, L.H. Selman, Ltd., Santa Cruz, Spring 2000, Lot 116; also see Paul Jokelson, Sulphides: The Art of Cameo Incrustation, Newark, New Jersey, 1955, color plate fig. XXVI and XXVIII; and Paul Hollister, The Encyclopedia of Glass Paperweights, New York, 1969, p. 42, fig. 13 for sulphides inspired by the Crystal Palace Exhibition and enclosing similar medals by Pellatt.