Campbell Scale Models HO Prestige Models Catalogue Seven (Catalog #7). With Model Builders' Conversion Tables insert (N, HO, S, O Scale) plus Price List. Features railroad kits, scenery, train stations, trestles, bridges, tunnels, dioramas. Includes kits based on building prototypes at Knott's Berry Farm's "Ghost Town". Undated circa 1960/1970's, published in Tustin, California. Color and black & white images, 29 pages, 11" x 8.25". Very good vintage condition, minor scuff marks on cover. See photos.