L&B Crest Lyn was a 2-4-2 tank steam locomotive built by the Baldwin Locomotive Works in 1898 for the Lynton and Barnstaple Railway. Between July 1897 and January 1898, employees of many British engineering companies were striking in an attempt to win the right to an eight-hour working day, leaving locomotive builders with large backlogs of unfulfilled orders. Thus, the Lynton and Barnstaple instead consulted the US based Baldwin to produce the engine they needed. After construction in Philadelphia, the loco was disassembled, shipped to Barnstaple, and reassembled by L&B staff in their Pilton workshops.