The product is a vintage 1981 GLEN-L Marine Designs boat plans, patterns, frame kits catalog, made in the United States. This collectible item is vital for boat enthusiasts and collectors looking to explore the history and design of boats and ships. The catalog likely includes detailed diagrams and instructions for building various types of boats, showcasing the craftsmanship and style of marine designs from that era. Perfect for those interested in traditional boat building techniques and vintage boat plans.