Ffestiniog Railway steam Locomotive No James Spooner This Fairlie Patent locomotive was built by the Avonside Engine Company Ltd Bristol England in for the Ffestiniog narrow gauge railway between Portmadoc and Blaenau Ffestiniog in Snowdonia Wales It served the slate quarries as well as carrying passengers The Scottish engineer Robert Fairlie patented his design for doubleended pushmepullyou locomotives in about