bull’s-eye
Isaac Kremer/ November 23, 2025/ / 0 comments
Small circular window; also known as oculus, oil-de-boeuf. 2. The raised circular center of a piece of hand-blown glass; also known as bullion, roundel. See also crown glass, rondelle. 3. An ornamental device with concentric circles similar to an archery target. (Bucher, 1996)