The Highland Railway L class also known as 'Skye Bogies' due to their association with the Kyle of Lochalsh Line. They were essentially mixed traffic versions of the earlier Duke or F class. The 18-by-24-inch (457 mm 610 mm) cylinders valve gear and motion were common to the two classes but they had smaller 5-foot-3-inch (1600 mm) driving wheels and higher pressure 150-pound-force-per-square-inch (1030 kPa) boilers.Nine were built at Lochgorm Works over the period 1882 to 1901. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
The answer to this question is:
Mean Of Transportation