The product is an antique stereo photo by Keystone View, featuring black and white images from the 1st World War. Made of cardboard, this 1st edition set includes three items from the United States. The brand, Keystone View Co., is well-known for producing high-quality stereoscopic views, providing a unique glimpse into history through detailed and vivid imagery. Perfect for collectors of photographic images and enthusiasts of historical artifacts, this set offers a rare and valuable piece of the past.