Need Help to identify native American jewelry artist. The piece is a Lion claw, sterling & turquoise necklace. Hallmark consists of "STERLING", then just below, a bear, facing left standing on all fours, and beneath the bear, the initials S & Z. Thanks!

Fetish bear made of marble with (reddish color streaks) in it bear is appro 3" tall 5" long 3 tone,turqoius,blue, arrow with black arrow head faceing the heart from the head .Approx 9 shells on top and down the sides.one small red stone &pearley looking shell,two blue feathers large off facing the back one yellow feather facing the front.large arrowhead banded to the left side. Hallmark onbottom back foot looks like the letter (A) with line down the center of it.