Richard Baillie had a yard in Haddington roughly where the telephone exchange now stands.
The company were responsible for various building projects in the town including
the, long closed, Vert Hospital beside the old A1 road.

I don't have much information on this particular locomotive but local man Jimmy Renton tells me that
it, or something similar, was used during construction of the Hopes Reservoir nr. Gifford.
Given its somewhat careworn appearance it's possible that it may have been "laid-up" for some time, so an
accurate date for this photograph is tricky although the loco itself was probably built in the late 1800s.

It would appear to be standard gauge (4' 8½") but, without a person to give it "scale", it's difficult to tell.
Temporary standard & narrow gauge lines were certainly laid during major building works such as that
of the Gifford & Garvald Light Railway. (See Gifford History for more.)

The makers plate on the side of the cab is proving hard to decipher but for many years one of the major
manufacturers of these type of engines was the North British Locomotive Works based in Glasgow.
Standard & narrow gauge products from this company were exported worldwide & some
can still be found working in countries such as India & Sri Lanka.

 

Incidentally, the Hopes Reservoir was constructed using stone recovered from the demolition, in 1930, of Edinburgh's Calton Jail
which stood in Regent Road. It's said that these stones were covered in the graffiti of former prisoners. Now lost forever alas.
The walls of the jail (see below) were retained & incorporated into the building of St Andrew's House.

If you can supply any more info about Richard Baillie, or the locomotive itself, please contact me.