Scrimshaw - Real or Fake?

It might be mentioned that "real" can have a number of different meanings...I'll mention Eskimo-style items often signed "Nuguruk" or "Nunuk;" these were made by a Seattle jewelry company from the late 1920s to the 1970s. They hired people, mostly non-natives, to put real scrimshaw on real ivory; walrus, even whale teeth; using templates of Eskimo themes supplied by the company.
These were in a sense real, certainly were real ivory; but real Eskimo/Inuit, or done by an actual artist named Nuguruk? No.
This ship looks a whole lot like the Nuguruk ship; but most of theirs had the signature on the front, sometimes on the back; and perhaps some were not signed "Nuguruk" at all.
I'd say that yours looks like real scrimshaw, on ivory; but not real fancy, and possibly from a source similar to the "Nuguruk" pieces.
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Thank you for your detailed analysis. It is very helpful in my search for a "fancy" piece. I'm trying to figure out how to assess an item when it becomes available. The resale shop I visit regularly has un-identified items, some of which turn out to be very nice. They also have a ton of decorator and faux items. Things fly off the shelves as there are numerous dealers and resellers who visit the store. I have to grab now and search later. Your information is very helpful. It didn't look like an artist's work but more a rote design. I'll take a real scrimshaw on a walrus tusk now and hope for a better piece in the future.