I received this fox pelt in a trade from an amateur furrier.

Its a beautiful fur for the purposes I will be using it for, historical reenacting, but it seems like the tanner forgot to fully flesh out the hide considering the oil and the sinew are still present in the hide.

Does anyone have clues on how this fur was cured and what I could do to make it so its good to be used on rustic/primitive clothing?

Thanks!