The curiously-named “Bug Boxes” 4-wheel coaches were the first passenger-carrying coaches built for the Ffestiniog Railway. Dating from 1864 to 1867 they were built by Brown, Marshall & Company. The term “Bug Box” is a more recent term given to them, possibly in the 1950s, and originally they were referred to as “Small Birmingham's”. Ten were built, including two replicas, and 7 survive, still doing what they were originally designed to do, moving passengers over the delightful and splendidly-scenic narrow gauge Ffestiniog Railway in North Wales.