This small 'bow-framed' petrol driven locomotive was supplied to the War Department during World War One. Later, it worked at Porton Down (the infamous Nuclear, Biological & Chemical (NBC) Research Establishment), before being bought for preservation. The locomotive retains its original petrol engine.
Having arrived in 1997 ( J.121 ), restoration to full working working order began in 1998 ( J.126 ). Following total strip-down, reassembly and underframe painting progressed well ( J.130 , J.133). Work progressed onto the brake rigging (J.138).
A similar 'bow-framed' locomotive, albeit a 40HP version, was used in 1941 on the Welsh Highland Railway demolition train.