Understanding Small Glass Tubes with Tiny Ball Bearings: What They Are and How to Identify Them

brass, wood, or cast iron, typically housed within larger leveling devices. Today, they are most commonly discovered in antique shops, estate sales, or vintage toolboxes. While they are generally safe to handle when intact, it’s important to treat them with care. The liquid inside may include substances such as alcohol or oil, which can be harmful continue reading …