1909 – Illus. of proper way to stem and the use of the pole

1909 - Illus. of proper way to stem and the use of the pole

1909 – Illus. of proper way to stem and the use of the pole. W. Rickmer Rickmers, Ski-ing for Beginners and Mountaineers, New York, NY: Charles Scribner`s Sons, 1909, 66-67, 69