Vtg 60s 70s Apache III Antietam Reversible Sleeping Bag 34 X 76 Prop

This is a very hard one for me to list.   This was my father's when he went from Ohio to the upper part of Canada to hunt with a group of friends. I don't remember the location but do remember they drove quite a way up into Canada and then were met by a plane that flew them into their camp.  They were left for a week or so and then the plane came back to take them out. I have added a picture that shows they got not only deer but also a bear.
I was daddy's girl, so it was hard for me to see this sleeping bag come out.  I knew he would be leaving for a week or so.
The tag reads that it is 34 X 76 and is reversible. It is filled with 3 lbs of Dacron, the top half has 2lb and the bottom 1 lb.  It is an Apache III made by Antietam.
The front shows 2 patches that have been well sewn. I have no idea when or why these were patched.  The cotton part has faded.
I know this bag is at least 60 yrs old. It's time for me let go of items.
Thanks for looking. Questions are welcome.