Working diagram (i.e. with movable parts) of the triple expansion engines of the Royal Mail Steam Packet Company's steamer "Orinoco", constructed by Messrs. Caird & Co., Greenock. 1886. Scale 1" : 1'. Made by H. & T.C. Batchelor, constructors of motion drawings, West Kensington, London Triple expansion engines of the Royal Mail Steam Packet Company's steamer "Orinoco" circa 1886