The 65c has a thin, and the $2.60 has a crease that is separated at the top. The product is a set of faulty but still valuable 1930 Graf Zeppelin airmail stamps from the United States. These stamps feature various denominations and vibrant multi-color designs, making them a unique and sought-after addition to any stamp collection. Despite being mint hinged and uncertified, these stamps are still considered valuable due to their historical significance and association with the iconic Graf Zeppelin airships. Perfect for collectors interested in back of book stamps and aviation history, these stamps offer a piece of history from the early 1930s.