The Caithness Glass 40th Ruby Wedding Anniversary Celebration paperweight is perfect for a 40th Anniversary Celebration. The paperweight is created using molten ruby red glass that is gathered and encased in clear glass. The tiny Bubbles are then blown in to create a raindrop effect. Since 1963 and now under the stewardship of Dartington crystal, the team of skilled Caithness glass designers and craftsmen continue to explore and push the boundaries of glass making whilst embracing modern developments in technology to produce high quality paperweights that are recognised the world over as the market leader.