I pulled this bag out of my dads closet the other day. I asked him about it and here is what he said:
I bought the best
Its a Western Mountaineering down Mummy Bag
Bought it about 20 years ago
Thinks it a -20 degree bag
Its purple in color
It appears to be gore wind stopper type material
He paid a lot of money for it at the time
It has a blue storage bag with western mountaineering printed on it
black stuff sack
blue western mountaineering label
Here is the Picture
DSCF3768.jpg