Stamps described with faults are NOT returnable. Stamps generic certificates from The Philatelic Foundation, PSE, or the APS are accepted. NOTE "graded" certificates or "encased" items are not accepted.Proof of the inability of a competent authority to express an opinion is not grounds for return. We use the finest in secure packaging to better protect your items. The item "#C13-C15 COMPLETE SET OF ZEPPELIN - VF+ OG NH - CV $1,650.00 KEY WL2621" is in sale since Thursday, April 4, 2013. This item is in the category "Stamps\United States\Back of Book\Air Mail". The seller is "billsbargainstamps" and is located in New Milford, New Jersey. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia.