The Vintage Burroughs Calculator Adding Machine from 1915 is a rare piece of machinery that embodies the craftsmanship and functionality of its era. With its 5 column, 10 row key-driven design, this calculator was a reliable tool for businesses and organizations needing to perform complex arithmetic calculations efficiently. Made by the renowned maker Burroughs, this adding machine showcases the quality and precision expected from such a historical piece. Perfect for collectors or enthusiasts of vintage accounting technology, this calculator is a unique and valuable addition to any collection.