"Vintage Sterling Silver butterfly pin/brooch made by Italian designer Guglielmo Cini for Black Starr & Gorham. Guglielmo Cini was an Italian-born jewelry designer who established his studio in Boston, Massachusetts, in the 1920s. He became renowned for his exquisite sterling silver creations, particularly his nature-inspired pieces like animals and insects, often featuring a distinctive hammered finish and oxidized details. Cini's work was highly sought after for its artistic quality and craftsmanship. Black, Starr & Gorham was a prominent American jewelry firm with a long history, formed from the merger of several established jewelers. They were known for their high-quality fine jewelry and often commissioned pieces from renowned designers. The collaboration between Cini and Black, Starr & Gorham resulted in some particularly desirable and collectible items, blending Cini's artistic flair with the firm's reputation for excellence. Dimensions: W: 3" x H: 2.16" x D: 0.25" with a weight 26.37 grams. Please see all pictures as they are part of the item description and details. Thanks!"