Rudolf StaffelRudolf Staffel, Marianne Aav, Helen Williams Drutt, Philadelphia Museum of Art, Taideteollisuusmuseo (Helsinki, Finland) · First published 1996Open the Tome
Jewelry of our timeHelen Williams Drutt, Helen Drutt English, Peter Dormer · First published 1995Open the Tome
Ruth Duckworth, Claire Zeisler, October 12--November 17, 1979, Moore College of Art, 20th and Race Street, Philadelphia, PennsylvaniaRuth Duckworth, Helen Williams Drutt · First published 1979Open the Tome
