Help Identifying Maker's Mark

[mgolab]

Hello:

any help on identifying this heart shaped makers mark would be appreciated. Maybe an "IS" in the heart. Only information that I can find is perhaps English or American. I went through the prior post with maker's mark and nothing showed up. Closest was British East India Company.

Hatchet is 5.25 x 3 inches, 1.5 pounds. Hatchet was re-welded.