Bohemia B-5 was the first aircraft of Czechoslovakia. It took off for the first time on 27 April 1919. Therefore the Czech National Bank issues a silver commemorative coin with a nominal value of 200 CZK in top quality proof on the occasion of the 100th anniversary of this event.

The aircraft B-5 was constructed by Oldřich Haller, who worked in the Pilsen Air Bohemian Club. The aircraft was small at that time. It was a two-seat biplane with a two-leaf wooden propeller, an open cabin and a canvas cover. Its construction was based on the components of the discarded Austrian or German machines. A number of parts for the construction were provided by Pilsner fans of aviation - the metal cover was supplied by the plumber company, the propeller was delivered by bodywork company and the covers were stitched by the sisters of one of the mechanics. The inline, water-cooled four-cylinder NAG was German, but constructively used as the engine introduced by brothers Wright. Engineer Haller contributed to increase its performance by 20% to 40 horses. The engine even survived the tragic accident and served until the last breath. Even though the Bohemia B-5 was rebuilt into a fashionable one-seat glider, it was exhibited with its original engine in the National Technical Museum, where we can admire it today.

The design that won the competition of the Czech National Bank was made by the academic sculptor Zbyněk Fojtů, who has wide experience with technical and especially aeronautical topics. The expert committee appreciated "a high quality and detailed depiction of the airplane and its schemes including a side view of the NAG engine".

The Czech Mint in Jablonec nad Nisou is an exclusive producer of Czech coins.