Toby's Old Tramway was Toby's original home before he came to work on the North Western Railway. It featured in one book of The Railway Series and in several seasons of the television series (it only made one official appearance in the first season).
Bio in the Railway Series
Toby's old line was located somewhere in East Anglia, England. The Railway Series describes the railway running through farms past fields and villages, ending at a station where the line junctions with the mainline to London and "elsewhere". Toby, with his coach Henrietta, used to work on the railway delivering goods from the farms to the junction or other stations. The line also took passengers. During the early 1950's or so, Toby's line went bankrupt, thanks to the lorries and buses taking over most of the work. Then the line closed, and Toby and Henrietta were sold to Sir Topham Hatt to assist Thomas with trains on the quarry line. It is not known what happened to the railway after that.
Bio in the Television Series
In the television series, Toby's old line was located somewhere in northern Sodor. The line started at Arlesdale End, where Toby's shed was, and then passed by a windmill, and through a small rocky cliff next to a bay. It then goes through a valley past an old castle, before arriving at the station of Lower Arlesburgh; it is not known where it goes from there.