• Era: 1950's

• Condition: Mint

• Diameter:  2 "

The firm of Cohn and Rosenberger was established in 1901 by Emanuel Cohn and Carl Rosenberger, Later incorporated in 1943, they shortened the name to Coro, Inc., combining the first two letters of the two rounders last names. Founded as an accessories boutique in New York City, Cohn and Rosenberger were businessmen who focused on business operations and growth, but they nevertheless had a good eye for the arts, hiring very talented professional jewelry designers who were allowed to develop their own creative visions at Coro. Even manufacturing was outsourced until they finally purchased their own facility in Providence, Rhode Island in 1929. This facility grew to be the largest costume jewelry manufacuting operation in the world, using advanced production line technology and employing up to 3500 workers at the peak of operations.

Richton International Corporation of New York purchased Coro in 1957 and continued production at the Providence factory into the 1970s. They were not well positioned in their manufacturing capabilities to produce the bead styles worn in the 1960s or the simpler goldtone jewelry produced in the 1970s by companies such as Monet and Asian manufacturers. Coro ceased ongoing operations in the U. S. in 1979 and continued producing jewelry in Canada until the mid 1990s.