This antique Underwood 278 Business Calculator is an excellent addition to any cash register or adding machine collection. With its sleek design and durable construction, this machine is sure to impress. The maker of this calculator is Underwood, a trusted name in the industry. Perfect for mercantile, trades, and factories, this antique calculator is a great conversation piece and can be used for display or functional purposes. Its history and unique design make it a valuable addition to any collection. Get your hands on this piece of history today!