The only thing I would do, not knowing what process or what was done to the bear is, put it through the pickle process, the degreasing process and use a tanning agent, if it looks raw it was not pickled properly or degreased properly, in order for the pickle to be effective and do its job, degrease the skin during the pickle process, if the skin is in good condition it will not hurt to put the skin through the whole process again.
I will be damned! Muscle20, you and I finally agree on something 100%!