The Vintage 1950s Collier's Encyclopedia Complete Set Volumes 1-20 with a black and red cover is a rare and collectible item for book enthusiasts. This hardcover set, published by Crowell-Collier Publishing Company in 1955, contains a wealth of knowledge in English language. Each volume is illustrated and considered a 1st edition, making it a valuable reference work for anyone interested in encyclopedias from the mid-20th century. For 1950 these books are in great shape, all pages in great shape. Awesome collection