Here are examples of starburst door escutcheons produced by three companies. In 1956 Better Homes and Gardens had ads from Schlage, Kwikset, and National Lockset adorning their pages. New oldstock has been popping up on Ebay frequently so make sure to include these company names in your search.
(click images for larger)
Here are some cool examples from the Harriet Carter catalog. I wonder if they have any deadstock in their warehouse?
Knobs and Pulls