GR557A GLT OO-9 Ffestiniog Railway 4-wheel Bug Box coach Col. Stephens livery, no. 3In old Company times, they were known as "Small Birminghams" to distinguish them from the bogie carriages built by the same company. The term "Bug Box" is thought to have been given to them c. 1955 by LNER driver Bill Hoole as it was a term used for ancient four and six wheelers on the North Eastern Railway. They share with the original Talyllyn carriages of 1865 66 the distinction of being the oldest railway carriages still in regular use in the