Britannia. By 1970, the branch was strong enough to operate independently as the Peterborough Locomotive Society (PLS). In 1971, 73050 was moved to the British Sugar Corporation's sidings at Fletton, where it was joined by Hunslet 0-6-0 locomotive 'Jack's Green'. Later that year, the PLS held a meeting at which the group's name was changed to 'Peterborough Railway Society' and the idea of the Nene Valley Railway was formally launched. Purchase of line and locomotives In 1974, the Peterborough Development Corporation (PDC) bought the Nene Valley line between Longville and Yarwell Junctions and it began leasing it to the PRS to operate the railway – a major milestone in the society's history. When the PRS acquired the line, the intention was to work the line with British locomotives and stock. However, enthusiasts from other railways and preservation societies had already acquired almost all of the serviceable ex-BR locomotives – all that was left was a collection of rusting hulks. Apart from 73050, the society's locomotives were mostly small, industrial shunting engines and therefore not suitable for the round trip. Ex-BR rolling stock was also in very short supply following the disposal of most pre-nationalisation (pre-1948) stock. The PDC, having paid out a considerable sum of money for the line, was anxious that trains should start running as soon as possible – certainly before the opening of the new Nene Park in 1978. However, with the PRC's lack of stock and locomotives this looked highly improbable. In 1973, PRS member Richard Hurlock had approached the society for a home for his ex-Swedish State Railways (SJ) class S1 2-6-4T oil-fired locomotive, number 1928. Because the engine was higher and wider than British stock, it was to be a static exhibition only. During 1974, it was realised that the use of foreign stock and engines could answer the NVR's aspirations. After a feasibility study was carried out, it was discovered that only one bridge would have to be demolished to allow the running to continental loading gauge. Some reductions would also have to be made to the width of the platforms. In 1973, BR gave PRS permission to use Wansford signal box and, in September of that year, the first items of stock arrived at the PRS depot. Operation Before the stock could be moved from the BSC depot to Wansford, the missing of the Fletton Loop had to be rebuilt, allowing access