Stamps only certificates from either APS, PSE or from the Philatelic Foundation are accepted, however "graded" certificates or "encased" items are not accepted. Proof of the inability to express an opinion is not grounds for return. We use the finest in secure packaging to better protect your items. Powered by SixBit's eCommerce Solution.This item is in the category "Stamps\United States\Sheets". The seller is "stukatz-stamps" and is located in this country: US. This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Australia.