Examples of Classes 26 and 27 shunting at the SRPS's site at Bo'ness, on the south bank of the River Forth. These classes were the mainstay of Scottish traction in the 1970s and 80s. The Bo'ness & Kinneil Railway, operated by the SRPS, runs a full summer steam and diesel service, with examples of many types of Scottish heritage motive power. More details at http://www.srps.org.uk - well worth a visit if you're in central Scotland.