Celebrate the 10th anniversary of the signing of the Sino-Soviet Treaty of Friendship with this 1960 Soviet friendship 3v C.T.O stamp set. This 6-strip set features a total of 18 stamps, each showcasing the strong alliance between China and the Soviet Union. These stamps bear the official factory name and include the numerical designation 1950-1960, making them a valuable addition to any philatelic collection. Each stamp in the set is in excellent condition and ready to display in your collection. Don't miss this opportunity to own a piece of history and commemorate the historic friendship between these two nations.