4 ft 8 in gauge railways are railways with a track gauge of 4 ft 8 in / 1,422 mm.
This gauge is 1⁄2 inch (13 mm) less than 4 ft 8+1⁄2 in (1,435 mm) standard gauge The first such railways were the Killingworth Railway[1][2] and the Stockton and Darlington Railway [note 1]
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