Östra Södermanlands Järnväg

Operations began on a small scale at the Lina brick works in Södertälje in 1959, until a chance to take over the recently closed Läggesta-Mariefred appeared in 1964.

operates traffic with 600 mm (1 ft 11+5⁄8 in) narrow gauge locomotives and carriages dating from the period 1890-1925.

Scheduled traffic run between Mariefred - Läggesta - Taxinge-Näsby, a total length of 11 km (6.8 mi).

The collection of passenger cars is internationally noteworthy, as 600 mm (1 ft 11+5⁄8 in) narrow gauge is typically used for industrial freight only.

After a 10 years long trial period running a type Y7 railcar the line has been undergoing regauging to 600 mm (1 ft 11+5⁄8 in) narrow gauge.