The product is a lot of 20 first airmail covers from the 1930s, with a focus on airports, flights, and aviation topics. Each cover depicts a different aspect of early airmail service in the United States, showcasing colorful designs and commemorating historical first flights. These pieces provide a glimpse into the evolution of aviation during the 1930s, making them a valuable and unique addition to any stamp or aviation collection. Found these in a shoe box that contained almost 100 covers Shipping via usps 1st class