D&E

DeLizza & Elster was a company started by William DeLizza and Harold Elster.  William DeLizza was the main designer of the factory line jewelry from 1947. Harold Elster died in 1963.  William DeLizza is still alive.

Below is a chart to help you understand the various companies that D&E manufactured jewelry for as well as their own lines of jewelry.

A wonderful site with great information can be found here:

http://www.junkyardjeweler.com/vintage_costume_jewelry_mall/juliana_facts_pages.htm