This lot of 4 vintage stamp collecting and price guide books includes First Day Cover World Stamps. They are a valuable addition to any stamp collector's library, providing insight into the history and value of these stamps. The books were published by Michel in France and are a great resource for collectors looking to expand their knowledge and collection. The lot includes publications on a variety of topics, including stamp identification, rarity, and value. As a collector, you will gain a deeper understanding of the stamps in your collection and their place in stamp collecting history. Don't miss out on this opportunity to enhance your collection and knowledge!