Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Avia BH-1 - The Avia BH-1 was a two-seat sports plane built in Czechoslovakia in 1920. It was the first product of the Avia company and it was originally designated BH-1 exp. The BH-1 was a low-wing braced monoplane of wooden construction with tailskid undercarriage. Power was provided by a Daimler engine which proved inadequate to fly the aircraft with both seats occupied. Soon after its first flight it was exhibited at the inaugural International Aviation Exhibition in Prague.
The answer is:
Mean Of Transportation