Barclay 0-4-0ST number 1863 was built at the Kilmarnock works of Andrew Barclay and Sons in 1926. She spent her entire life shunting wagons at Cupar sugar beet factory in Fife, and was in regular use until the late 1960s when she was replaced by a diesel and left in the back of the factory's engine shed. Following closure of the factory in 1980 she was bought by Mr David Stobbs and restored to use at Brechin. Throughout the 1980s she worked 'shuttle' trains out of Brechin station for a few hundred yards while the rest of the line was brought up to operational standard. When the line opened fully in 1992 she had fallen out of use and was placed in open storage at Brechin.

In the mid 1990s a group of railway volunteers formed the Angus Railway Steam Engineers and clubbed together to buy 1863. Her overhaul began in 1996, and was finished in 1999. This was fortuitous as the only other working steam loco on the railway had expired with serious defects in 1997!

Restored to Caledonian Railway passenger blue, the 'wee Barclay' is a regular performer on light, early season trains or as station pilot on gala days. She is capable of a fair turn of haulage, on one memorable occasion hauling three coaches and a failed diesel from midway down the line back to Brechin station!