 There followed a long period of locomotive construction internally with all locomotives between 1875 and 1900 coming from the company works . The vast majority of these being tank engines although a small number of tender engines were constructed . Most engines , whether tank or tender locomotives were built with either 2 @-@ 4 @-@ 0 or 0 @-@ 6 @-@ 0 wheel arrangements . An urgent need for heavier goods engines prompted the company to go to contractors and a small number of 0 @-@ 6 @-@ 0 designs were purchased from Nasmyth , Wilson and Company . In 1903 five 0 @-@ 6 @-@ 2T engines were purchased from Vulcan Foundry and with the exception of two locomotives for shunting purchased from Kerr Stuart in 1919 these were the last engines not to be built by the company at Stoke . 
