On the right is 0-6-0T no. 54 (Henschel works no. 9359 of 1909, built as a standard gauge engine and converted to metre gauge in the 1920’s when the lines north from Bangkok were converted from standard to metre gauge). On the left is one of six 0-6-0T’s built by Brush in 1910/11, numbers 57-63, works numbers 318-24. It’s possibly no. 63, reported as being at Kabin Buri in 1988, but I haven’t found out which one for sure.