Eduard Imhof
"Karte der Gegend um den Walensee" (section) by E. Imhof 1:10,000, 1938."
Nowadays terrain like Google's are generated digitally from Digital Elevation Models. Overal it's a great addition to an already impressive product. It's interesting to toggle between the satellite imagery and the terrain. In many cases the terrain allows you to visualize the landscape much better than the photograph. Example below: