21. In 1889, the Cape Government Railways placed 24 3rd Class tender locomotives with a American type wheel arrangement in service. 22. In the model 407, each type bar was replaced with a type wheel , with the characters along the outside edge. 23. In 1903, the Cape Government Railways placed two 6th Class steam locomotives with a Prairie type wheel arrangement in service. 24. In 1930, the South African Railways placed fourteen Class 19B steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. 25. For this reason " bucket " type wheels are preferred by many hedgehog owners, and they are available from many breeders. 26. Between 1919 and 1929, the South African Railways placed 67 steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. 27. In 1929, the South African Railways placed 36 Class 19A steam locomotives with a 4-8-2 Mountain type wheel arrangement in service. 28. They displayed a tendency to be unsteady at speed and the design was therefore modified to a Adriatic type wheel arrangement. 29. These 38 locomotives were the second batch of CGR 8th Class locomotives to be built with a Mastodon type wheel arrangement. 30. In 1917, the South African Railways placed seven Class K tank steam locomotives with a Baltic type wheel arrangement in service.