John K, finding that catalog must have aroused a few memories. Thanks for the information.
Paul, thanks for your fine recollection of their advertised fill power.
FWIW, I made a bunch of stuff from their catalog, including a couple sleeping bags for my sister and I, a Skyline tent (a modified a-frame with a fly sheet that rolled up to attach to a fin atop the peak of the mesh tent body. I still wear my bulky Frostline synthetic fill vest. The front loading external frame pack has disappeared (faded memories of an Alpenlite frame and all the creaking/clicking cotterpins and rings). I seared the edges of many yards of uncoated ripstop. The things I pushed on our sewing machine back in the day amaze me now--back then we could never have imagined a Hello Kitty sewing machine.
All that gear performed for us in the Kings Canyon, Zion, Death Valley, Yosemite, Pine Valley Mtns (UT). The coated nylon stuff sacks and pack cloth went stinky long ago. Things have changed for the better for wheezing, gassy old wannabees like me.