Also see Macchiarini on Macchiarini, June - July, 2000--one of the first and still one of the best articles from MODERN SILVER magazine.(Example is a ring with a Nice Sized Pearl on oneside and a Gold Ball on the Other Each is Hooded with a Silver Bowl that has a hole so you can see through to the Otherside! I hope the descriptions don't sound to disappointing.
Please read more about Peter Macchiarini in both of my books, "Modernist Jewelry, 1930-1960, The Wearable Art Movement" and "Form & Function, American Modernist Jewelry, 1940 - 1970." His work was a major part of the exhibit "American Modernist Jewelry, 1940 - 1970" at the Fort Wayne Museum of Art, 2008.
See American Modernist Jewelry, 1940 - 1970, MODERN SILVER magazine, Winter, 2008-2009.
Other exhibition venues were the National Sculpture Society, National Academy, Pennsylvania Academy, and Rockefeller Center.
He created numerous medallions including ones for the Vatican in Rome. Manca also did WPA (Works Progress Administration) sculpture, and one of these pieces is "Wild Duck and Deer", 1942, in Lyons, Ohio.
The pin is 45cm by 82 cm and is set with a large root beer colored glass stone.