• Nat Sugarman founded The Beatrix jewelry company after the second World War, in 1946. He named it after his sister, Beatrice.
• In 1965, Leonard Mundell, the manager of the company became its new owner.
• Noteworthy, marking “BJ” or “Beatrix” wasn’t consistent until 1975, but from 1975 to 1977, marking on the back side was constant and mandatory.

• I would date this brooch to the1970s since I personally remember having a very similar brooch but with a powder blue enamel dress.  Boy, I sure do wish I had that brooch today.  I remember loving it.