This vintage promo chart from Cambridge Wire Cloth Co. is a must-have for any collector of advertising memorabilia. Featuring decimal equivalents, this chart is perfect for anyone in need of precise measurements. The brand, Cambridge, is well-known for their quality products and this chart is no exception. Whether you're a collector or just in need of a functional and unique piece, this promo chart is sure to impress. Don't miss out on the opportunity to own a piece of advertising history.