The Optimist is a small, single-handed sailing dinghy intended for use by children up to the age of 15. Nowadays boats are usually made of fiber reinforced plastic, although wooden boats are still built. It is one of the most popular sailing dinghies in the world, with over 130,000 boats officially registered with the class and many more built but never registered. The Optimist is recognized as an International Class by the International Sailing Federation. This maxi card given to me by my dear friend Merja and the 3.40 stamp on it were issued on 9.6.1995 to commemorate the World Championships Of Optimist Dinghies held in Aland.