Green is one of the first jewelry manufacturers to utilize both the highest quality manmade and natural stones in her line in addition to offering all designs in both 14 and 18 karat gold. (thefashionablehousewife.com)
Jewelry manufacturers today have a hard time producing the delicate details that are unique to vintage, like safety chains on bracelets, etching on chains and heavy clasps on necklaces. (alexandriahaddad.com)
Also take a look at Newark Jewelry Manufacturers» Marks. (newarkmuseum.org)