This vintage 1975 Perrygraf slide chart is a rare find for collectors of advertising memorabilia. The chart, featuring multi-color bricks, is a perfect addition to any collection of vintage merchandise. The chart was created in the United States and is an excellent representation of the history of brick masonry in America. The Brand, Perrygraf, and the Brick Institute of America are known for their quality products and this slide chart is no exception. It's perfect for anyone interested in the history of brick masonry and the art of slide chart advertising.