Description
Large Group of Assorted Marbles, late 19th and 20th century, thirty-two small ribbon swirls of which nine have open threaded cores, six are coreless, thirteen have solid threaded cores, and four have solid cores, mostly dia. 3/8, 7/16 and one 1/2; approximately 250 clays, dia. 7/16-1/2; approx. 350 machine-made opaque...