This stamp set commemorates the 150th anniversary of the United States Constitution and was produced in China in 1939. The set includes four stamps, each in mint never hinged (MNH) condition, with a grade of VF/XF (very fine/extremely fine). This set has not been certified, but the quality is exceptional and a great addition to any stamp collection. The place of origin for this stamp set is China and it falls under the categories of Stamps, Asia, and China. Don't miss the opportunity to own this unique and historical set.