1. Canals of the world Maps Pennsylvania State University Public content 1914. George Philip & Son. Scales differ; 4 maps on 1 sheet: color; 22 x 30 cm Canals--Maps.
2. Mercator map of the world united : a pictorial history of transport and communications and paths to permanent peace Maps Pennsylvania State University Public content 1944. Chase, Ernest Dudley, 1878-. Scale not given; 1 map: color; 39 x 92 cm World maps.