Hults Bruk – 3.5lb Yankee Pattern – Pre 1988

I recently discovered that the old axe that I had carried and used for many years was not just any old hardware store axe. It originally belonged to my great uncle and I figure it was probably purchased in the 70’s. At some point the handle was replaced but was in need of a new one once more. I found a few places where blue paint was very faint. It looks to have the pre-88 cold HB stamp on one side and 1,5/3 1/2 on the other. I’m looking for any information on its original model so that I can find a replacement handle and sheath to restore it to its former beauty.
Thanks