Designed as a rounded rectangle with a decoration of granulated birds and old brilliant ct. diamonds, weighing approx. 1.00 ct. Elisabeth Treskow (August 20, 1898 – October 6, 1992) was a pioneering German goldsmith, silversmith, educator, author, and jewelry designer based primarily in Cologne. She is historically recognized as one of the earliest professional women in her field and is celebrated for rediscovering the ancient Etruscan technique of granulation around 1930.Throughout her career, her elite craftsmanship earned international acclaim, including a Gold Medal at the 1937 Paris World Fair, and her legacy is preserved in prestigious institutions like London's Victoria and Albert Museum and Cologne's Museum für Angewandte Kunst (MAKK). Marked ET at the back.

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