1956 PurOlator Dry Type Micronic Air Filter Catalog, 36 pages. Plus I put in a 1958 PurOlator Products Dealer Green Suggested  Price List, 4 pages. Items have odor and wear from use in a mechanics shop years ago. The catalog is chock full of really cool photographs, diagrams and information. Awesome vintage items. Check out photos. Any questions, please ask.