When was the twin-tip ski invented?

Answer 1

1. The first modern Twin-Tip was the Salomon 1080 (1998)
2. The first mass produced Twin-Tip was the Olin Mark IV Comp (1974)
3. Sometime prior to their appearance in the 1931 Arnold Fanck film Der weisse Rausch (<1931)

Answer 2

Olin Mark IV comp invented the first twin tip skis. But it was not successfully marketed. It is the company that successfully marketed the first twin tip ski.