In 1901 the locomotive was rebuilt by Drummond as a side-tank engine, in which form it was renumbered 53. In 1903 it was renamed 'Lybster' and transferred to that branch. It passed to LMS ownership in 1923. Strath class 4-4-0 of 1892 P class 4-4-0T of 1893 Jones Goods 4-6-0 of 1894 The Loch class 4-4-0 of 1896–1917 had a very high power/weight ratio and was among the several classes carrying his special louvered chimney. This invention involved the division of the chimney into a central exhaust tube and an outer concentric ring into which air was projected through the louver slits down the front of the chimney casing. The increase in air resistance was induced by deflector plates. By this means, a draught was supplied when the engine was running with its steam cut off, as happened for long stretches on the hilly Highland line. Other Jones era locomotives Yankee tanks In 1892, the opportunity was taken to purchase two 4-4-0T engines which had been built by Dübs and Company for the Uruguay Eastern Railway but not delivered due to a financial hitch. These were known as the Yankee tanks. Dunrobin When the Far North Line opened to Golspie in 1871, the 3rd Duke of Sutherland had purchased a small 2-4-0T from Kitson and Company for his private train. Named Dunrobin, it had 4 ft driving wheels, 10 in by 18 in outside cylinders, and weighed 21 tons in working order. On his succession, the 4th Duke decided to have a new locomotive built, and the original Dunrobin was sold to the Highland Railway in 1895. It was rebuilt in 1896 with a larger boiler and cylinders. The Highland Railway numbered it 118 and named it Gordon Castle''' for use on the Fochabers branch. Later it was renamed Invergordon and used as a shunter in that town, where it survived until just after the Grouping. The Duke's new locomotive was an 0-4-4T designed by Jones and built by Sharp, Stewart and Company in 1895. Also named Dunrobin, it had 4 ft 6 in driving wheels and 13 in by 18 in inside cylinders. References H. A. Vallance (1938) The Highland Railway'' External links http://www.users.globalnet.co.uk/~emgeedee/jones.htm http://www.steamindex.com/people/jones.htm Jones locomotives