Classification fashion and costumejewellerynecklace Description A necklace with graduated sized beads desiged to mimic carved ivory and a screw together clasp. This item forms part of the Plastics Historical Society (PHS) collection. Designers & Manufacturers Designer (Person) Unknown Manufacturer Unknown Object number PHSL : 559 Date 1920 - 1929 (circa) Country UK Method extruded cut Material casein formaldehyde plastic CF Dimensions Width 10mm Length 480mm Colour cream