"Innsbruck" was a small ski factory located in Austria, as opposed to the larger factories like (Kastle, Fischer etc).
The ski boasts a hand painted top sheet and bases that are lacquered, rather than plastic and might possibly be cellulose.
The 22 laminations of wood consist mainly of ash mixed with pine.
Very hard to find, especially in such good condition having been drilled once for Marker Rotomat bindings and skied on.
Recommend finding period specific Marker Rotomats and attach to skis.