Vr: railway survey plans and detailed curve & Gradient diagrams, Geelong and Colac Railway, Colac and Camperdown Line and Camperdown to Terang and Warrnambool Line, July 1874 to October 1887, three plans 2 chains to an inch, four plans 4 chains to an inch, string-bound to original canvas binder. Some foxing, fair condition. (52 pages)