I saw one attributed to Ishi that was otter and had the fur outside.
Yes you did,but those were early pics taken by Thomas Waterman,while the quiver was in possession of the man,who took it and other things,from wowanupo,or the invaded camp.Jack Apperson,initially refused to relinquish the items to the university,but later,when the group,including Ishi,came back to the region,they convinced Apperson to sell.After re reacquiring the quiver,Ishi informed them,that it was turned inside out and that he carried it fur side in.It is still exhibited that way at the university today.