It was not an abnormal thing in the ancient era of the Inuit that tools would break and be re-purposed rather than thrown away as we seem to be so accustomed to. While unclear, this one appears to have been a piece of a harppon head. This ancient artifact is dated back to 4,000 years old, though the original use of the piece of seal bone could have been something else entirely. It was sourced from the Bering Strait, and despite the mystery of it's original use it makes for an outstanding relic of human history. Measures about 2" long.