were based on Robinson's GCR Class 8K. Another 84 locomotives of the same class were hired in 1919–20 but were returned in 1921–22. In 1925, a further 80 locomotives of the same class were purchased, of which nineteen were among those previously hired. 3000 Class (2-8-0): 3000–3099 Locomotives of amalgamated companies (1920 - 1924) Eighteen companies were merged between 1 January 1922 and 1 January 1924 under the provisions of the Railways Act 1921, bringing 925 locomotives. Alexandra (Newport and South Wales) Docks and Railway 39 locomotives acquired on 1 January 1922. Barry Railway 148 Barry Railway locomotives acquired on 1 January 1922 and given random numbers in several series. Brecon and Merthyr Railway 47 locomotives acquired on 1 July 1922. Burry Port and Gwendraeth Valley Railway 15 locomotives acquired on 1 July 1922. Cambrian Railways 94 standard gauge locomotives acquired on 1 January 1922 given random numbers in various series.. Vale of Rheidol Railway Three gauge locomotives acquired with the Cambrian Railways on 1 January 1922, also two new locomotives, similar to the earlier 2-6-2Ts, built in 1923. Welshpool and Llanfair Light Railway Two gauge 0-6-0T locomotives acquired with the Cambrian Railways on 1 January 1922. Cardiff Railway 36 locomotives acquired on 1 January 1922. Cleobury Mortimer and Ditton Priors Light Railway Two locomotives were acquired on 1 January 1922 Gwendraeth Valleys Railway 2 0-6-0ST locomotives were acquired on 1 January 1923. One was given a GWR number, but the second (Margaret) was sold without being allocated a GWR number. Llanelly and Mynydd Mawr Railway 8 locomotives acquired on 1 January 1923. Midland and South Western Junction Railway The M&SWJR's Locomotive Superintendent from 1903 to 1923 was James Tyrell. 29 locomotives acquired on 1 January 1923. The three Dübs 2-4-0s were the only M&SWJR locomotives to survive into British Railways ownership in 1948. At least one of them was used on the Lambourn Valley Railway, probably because of its light axle load. Neath and Brecon Railway 15 locomotives acquired on 1 July 1922. Port Talbot Railway and Docks Company 22 locomotives acquired on 1 January 1922. Powlesland and Mason Powlesland and Mason were contractors at Swansea Docks, and their 9 locomotives were acquired on 1 January 1924. Rhondda and Swansea Bay Railway 37 locomotives acquired on 1 January 1922. Rhymney Railway 123 locomotives acquired on 1 January 1922 given numbers in random series. South Wales Mineral Railway 5 locomotives