old indian hatchet and knife

Hi .. I have these two items, not sure what the handles are made of.  Ivory or bone?  Totem pole with pretty good detail on them.  I can not find any markings to help me figure out exactly when and where they came from.  The hatchet and the spade shaped blade are extremely rusted and dried layers of black gunk on them.  Someone said probably blood, I hjonestly have no idea about anything with these two items.  The sheath on the Spade like blade has white and black seashells look like things. Has brown string that was sewn around the edges.  looking at the stitches It appears to be hand sewn.  There are no nails are screws used to attach blade and handle.  I am very much interested in finging out exactly where and when these things are from.