Wikimedi'Òc

Fitchburg steeple compound engine (New Catechism of the Steam Engine, 1904).jpg - Andy Dingley

Fitchburg high-speed automatic engine (New Catechism of the Steam Engine, 1904).jpg - Andy Dingley

Fitchburg cross-compound horizontal engine (New Catechism of the Steam Engine, 1904).jpg - Andy Dingley

Fitchburg automatic engine (New Catechism of the Steam Engine, 1904).jpg - Andy Dingley

Fitchburg balanced valve (New Catechism of the Steam Engine, 1904).jpg - Andy Dingley