A portrait of Mallet steam locomotive 0-6-0+0-6-0 #12, Sweden's biggest narrow gauge steam locomotive, at Jädraås' preserved locomotive shed. This locomotive was built by ATLAS in Stockholm in 1910 and was operational on the Dala-Ockelbo-Norrsundets Railway, DONJ, until 1964. The Swedish national railway museum bought this locomotive in 1967 and it has been operational again on the Jädraås – Tallås Järnväg (JTJ) museum railroad since 1983.