Good thread. I bought these old metal skis for a few $$ at a garage sale 25 years ago because they were so unusual. Never really knew what they were until doing some research recently. Turns out they are 'Air-Skis' from 1947 and were developed by a Dow Chemical engineer using Dowmetal O-1hta magnesium (the world's lightest structural metal at the time and developed for WWII aircraft). The skis were manufactured by the American Ski Company in the small northern Michigan town of Clare and shipped worldwide. They were the first important American contribution to the sport of skiing. I'm in the process of donating these to the Clare County Historical Museum.
