This is a Jansport Mountain Dome Tent. As I’ver read it’s the model used by the American assent on K2 in 1975. This early Geodesic tent has features making it befitting of an ascent on the second highest mountain in the world. Those features include an additional tunnel style door and vents. A full covering fly with cut outs for additional guy lines from the tent poles. Snow piled on the flaps around the bottom helped keep the tent anchored in extreme conditions. The poles are original and fit together in individual sections,there’s no shock cord connecting the segments of each of the three poles. The sections are made of a dense plastic or possibly fiber and resin material. I can imagine trying to fit them together, fumbling with them in a K2 basecamp, but they work.
The tent is of course made from nylon. A fine ripstop version up top and a heavy coated nylon on the bottom. The thickness of the bottom would keep out melting snow and reduce the need for a ground cloth. The full fly is made of a tightly woven nylon to be water and wind resistant. The color block pattern is wild and right in line with early JanSport design and marketing.
Tent measures approximately 69″ inches across at its widest and 52″ tall at it’s tallest. I would classify it as a three-man, four-season tent. In total it weighs approximately 10lbs.