Sled-dog racer Leonard Seppala holds his lead dog, Togo, in his arms. During the 1925 serum run to deliver diphtheria antitoxin to Nome, Alaska, Togo

Sled-dog racer Leonard Seppala holds his lead dog, Togo, in his arms. During the 1925 serum run to deliver diphtheria antitoxin to Nome, Alaska, Togo