1940's Coro Brooch

This is an unmarked Coro Brooch from the 1940's. It is about 3 1/4 inches long. Some of the rhinestones need to be replaced. It was designed by Adolph Katz. It is not one of the elaborate pieces but still a nice addition to my little collection.

This is a link to the patent: http://imageevent.com/clios_vintage_jewelry/coropatents/coroflorals1930to1941prewwii;jsessionid=rg9ws9eyb1.eagle_s?p=91&n=1&m=-1&c=4&l=0&w=4&s=0&z=2

Thanks for looking:)