service at the Port Elizabeth Harbour, followed by one more in 1903. In 1902, the Zululand Railway Company, contractors for the construction of the North Coast line from Verulam to the Tugela River, acquired two 2-6-0 tender locomotives as construction engines. Upon completion of the line in 1903, the locomotives were taken onto the roster of the Natal Government Railways and designated Class I. Between 1902 and 1904, eleven Mogul saddle tank locomotives, built by Hunslet Engine Company, were delivered to the Table Bay Harbour Board. All were taken onto the Cape Government Railways roster in 1908 and came into SAR stock in 1912, but were considered obsolete and remained unclassified. Narrow gauge In 1902, the CGR placed three locomotives with a Mogul wheel arrangement in service on the Hopefield narrow gauge branch line that was being constructed from Kalbaskraal. They were built by Baldwin and were of a standard type that was being used on the narrow gauge railroads of Maine in the US. A fourth locomotive, identical to the first three, was ordered from the same manufacturer in 1911. In 1912, when these locomotives were assimilated into the South African Railways, they were renumbered with an "NG" prefix to their running numbers. When a system of grouping narrow gauge locomotives into classes was eventually introduced somewhere between 1928 and 1930, they were to be classified as Class NG7 but had already been withdrawn from service. United Kingdom In the United Kingdom, where locomotives are generally smaller than in the US, the was found to be a good wheel arrangement for mixed-traffic locomotives. Circa 1870, one 2-6-0T engine was built for the Garstang and Knot-End Railway. The first unsuccessful examples were fifteen locomotives built to a design of William Adams for the Great Eastern Railway in 1878–79. The Midland and South Western Junction Railway acquired two examples built to an Australian design by Beyer, Peacock and Company in 1895 and 1897. A long strike by workers throughout the British engineering industry in 1898/1899 led to a backlog of locomotive orders. This led leading British companies to place orders with American builders for standard light general-purpose locomotives adapted to British requirements. In 1899, the Midland Railway (MR), the Great Northern Railway (GNR) and the Great Central Railway all purchased examples from the Baldwin Locomotive Works in the US. The MR also bought ten from Schenectady Locomotive Works at the same