Vintage Handmade Black Goldstone Glass Ring | Whistle Button Ring | Sz 5

An interesting mid century range handmade gold filled black with goldstone glass ring. The ring is is hand fabricated with a gold setting that holds a 17.50mm by 10.24mm rectangular goldstone with black glass. The stone appears to been a button that was from the 1800's known as a whistle button. It is unmarked and looks like solid karat gold but tests as not gold on an electronic gold tester. Having XRF tested would be a more reliable test to confirm but no access to one at the moment so selling as gold filled. Circa 1940's to 1960s range. Weight: 4.0 grams. Measurements: Ring size 5. Measures 20.33mm by 12.75mm across the top with a 3.90mm wide band. Condition: The mounting is in good shape considering age. Shipping time: 1 to 3 days.