1832  [The pelts, or scalps, are carried to the vessels, and packed closely in the hold. . . .]
1842  The legs or "flippers," and also the head, are then drawn out from the inside, and the skin is laid out flat and entire, with the layer of fat or blubber firmly adhering to it, and the skin in this state is called the "pelt," and sometimes the "sculp."
1956  Words originating in Newfoundland [include] sculp: skin of a seal with the blubber attached.
1966  The sculps (the seal skin plus the attached blubber) are piled between layers of snow in the storage shed.