This antique Burroughs adding machine is a vintage calculator with a cast iron body. It features the classic design of a mechanical adding machine and is perfect for collectors of antique office equipment. The maker of this item is Burroughs, a well-known name in the adding machine industry. This adding machine is a great addition to any antique collection, especially for those interested in old office equipment. Its cast iron body and vintage design give it a unique and nostalgic feel. The Burroughs adding machine is not only a piece of history, but also a functional calculator that can be used for basic math calculations.