The product is a vintage Raimond Viners of Sheffield English pewter mug with a clear glass bottom, also known as a stein. This collectible piece is made of high-quality pewter, showcasing the craftsmanship of the renowned brand. The unique design with a clear glass bottom adds a touch of elegance and charm to this classic mug. Perfect for collectors of metalware or those looking to add a piece of British heritage to their home.