LSE4105659 Colonel Beaumont?'s compressed air locomotive, used on one of the London tramways - in ??sThe New Conquests of Science?????? by Louis Figuier, 19th century by French School, (19th century); Private Collection; (add.info.: Colonel Beaumont?'s compressed air locomotive, used on one of the London tramways - in ??sThe New Conquests of Science?????? by Louis Figuier, 19th century); Photo ?? Leonard de Selva.