Coro Jewelry Research Information

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Vintage Coro Jewelry History


1901 - mid 1990's

Vintage Coro Parure
In 1901 Carl Rosenberger and Emanuel Cohn created Coro Inc. in New York City. They initially operated under the name Cohn & Rosenberger until 1943 when they changed the name to Coro, Inc. (CO for Cohn, RO for Rosenberger).

The American division of Coro went of business in 1979. The Canadian division produced up until the mid 90's.






Marks

The earliest pieces were marked CR. The most common Coro mark was the "Coro" script mark which was used first in 1919. Other quality pieces were produced under these names:



  • Coro Craft (used after 1937),
  • Sterling Craft Coro (1942),
  • CoroCraft Sterling (after 1942 to 1944),
  • Coro Sterling (after WWII),
  • Corocraft (used after 1944 to 1947),
  • Coro Pegasus (after WWII).


There were many other marks used.



Coro Designers

Important Designers in the history of the Coro Company were Adolf Katz, Gene Verecchio, (1933 - 1963), Robert Geissman, (1938), Massa Raimond and Oscar Placco, (1938 - 1945).



Most Collectible


One of the most popular pieces of jewelry that Coro produced was the duette double clip, which could be worn separately or could be combined into one brooch. These duette clips are likewise popular with collectors today.




Coro Jelly Belly



Coro's Figural "Jelly belly" jewelry is highly sought after and often comands a premium price.





Coro Brooch




Gold washed sterling vermeil pieces, made in the 1940's are also highly prized by collectors.




Dating

Coro Patent


Prior to 1955 the Coro company was know for registering their designs with the US patent office. Most, but not all, were registered by Coro's most prominent designer Adolf Katz. A perursal of the patents registered is often a useful way of dating some of the older Coro Jewelry.







Antique Jewelry Research Information

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