Keramic Art Works Glaze Plate

CHELSEA KERAMIC ART WORKS Experimental glaze plate, ca. 1877-80. (Exhibited in 'American Art Pottery, 1875-1930,' Delaware Art Museum, 1978, catalog #35.) Stamped CHELSEA KERAMIC ART WORKS, ROBERTSON & SONS. 5 1/2" dia. (NOTES: "Hugh Robertson liked experimenting with glazes and we've always looked for experimental pieces. This little plate, probably one of Robertson's earliest glaze trials, was bought at Bourne's on the Cape in 1975.")