750 mm gauge railways
750 mm (2 ft 5 1⁄2 in) narrow gauge railways are very similar to 760 mm (2 ft 5 15⁄16 in) and 2 ft 6 in (762 mm) gauge. 750 mm gauge rolling stock is compatible with 760 and 762 mm railways.
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Wikipedia
750 mm (2 ft 5 1⁄2 in) narrow gauge railways are very similar to 760 mm (2 ft 5 15⁄16 in) and 2 ft 6 in (762 mm) gauge. 750 mm gauge rolling stock is compatible with 760 and 762 mm railways.