Non-climbing
During his first years in America, Wiessner founded a chemical company that specialized in waxes, including a widely-used ski wax known as Wiesner's Wonder Wax. He successfully developed his company during the great depression of the 1930s.
Wiessner was also a proficient skier. He was reportedly disappointed that he was not allowed to fight for the U.S. in World War II; he served as a technical advisor to the 10th Mountain Division and to the equipment for cold climatic areas commission of the office of the quartermaster general in Washington DC.
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