Wonderful Old Inuit Scrimshawed Bone Box

Really a wonderful, and curious little box, which I am quite confident is Inuit, and carved of bone--I would guess Caribou bone/antler as it feels very similar materially to a couple of Inuit dolls I've had, carved of Caribou bone and joined with thread made from sinew (ivalu), which is how the carved lock (which looks rather like a rudder) is secured and held tight via a knot on the opposite side of the box.  I am not quite sure the original function of it--the two openings in the top suggest it might have been worn (?), or dispensed something through those holes, perhaps sinew thread??? The fantastic scrimshawed drawings on the sides--of a man with dog facing a man with bird on one side, and what looks like a steamship on the other--doesn't make it evident, but perhaps corresponds with the idea of some sort of thread or line? In any event, quite a special and unusual thing, 19th century I am pretty sure. I would guess that the bone pin, which holds the lid in place at one corner, is