There are no gum skips or gum bends. This stamp has no faults. 2007 Professional Stamp Expert certificate #1132097 (graded 85, "never hinged"). If you have questions regarding this Scott #C15, please contact Christopher Rupp. Every inquiry will receive a prompt and candid reply.Upp Brothers was established in 1975 - this is our 43rd year in business as professional philatelists. We endeavor to eliminate the anxiety from the experience. Rupp Brothers will pay the FULL market price for your quality United States stamps. We can view images of all certificates issued by The Philatelic Foundation (PF) and Professional Stamp Expert (PSE) on their respective websites. After you review our offer, we encourage you to ask questions, so that you are fully informed. The item "#C15, $2.60 Graf Zeppelin, VF/XF-OG-NH, sound, 2007 PSE (85-nh), 2018 SMQ $1,050" is in sale since Friday, August 3, 2018. This item is in the category "Stamps\United States\Back of Book\Air Mail". The seller is "ruppbrothers" and is located in Locust Valley, New York. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Sweden, Indonesia, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Bahrain, Croatia, Malaysia, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Bahamas, Viet nam.