Double Fairlie locomotives from 1879. These locomotives use the "Fairlie Patent" double bogie design which has become synonymous with the Ffestiniog Railway.
The first two loco's to this design "Little Wonder" and "James Spooner" have been scrapped, the third, "Merddin Emrys" was built at Boston Lodge in 1879.
"Earl of Merioneth" was built at Boston Lodge between 1972 and 1979 to a different design, with squarer tanks and slightly larger dimensions.
A new "James Spooner" is under construction at Boston Lodge and expected to be complete in 2021
Dimensions shown are for original loco's Merddin Emrys etc.