British Industrial Narrow gauge.
Callender's Cable located in Belvedere, Kent was a 3' 6" gauge line circa 1966/7.
Sir Tom was a 1924 Bagnall 0-4-0ST. Builders # 2133.
Photo by Ray Soper, Brampton, Ontario, Canada. (Ray Soper)
Scan by Michael Taylor www.MichaelTaylor.ca