Here is a hard-to-find hand-made remains of a parfleche envelope / case that recently came out of a Nebraska collection and 

was said to be Sioux.  It is 3 sides of an original 5-sided envelope or case.  You can see where parts of it have been cut away

to make soles for moccasins.   

The paint is in pretty good condition for the age and type.  It measures about 16" by 10" when folded up.   A rare survivor and 

a great addition to your collection.  I will also be listing a couple of other items from this same collection.