Inside Out Library · ExploreAn investigation of a Strauss trunnion bascule bridge (1912)Sandberg, Reuben Lawrence · leaf 38J? - Ju<^. … (M)Movable bridges · Bridges · ThesesInternet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.More pictures from An investigation of a Strauss trunnion bascule bridgeMore like this
