Great bow -- it reminds me a lot of the Holmgard -- a little longer and narrower, and others of those early types like the Ringkloster. It fits wonderfully for a northern European primitive self-bow made from a local hardwood.
I've seen back reduced or notched nocks on drawings of Finnish bows, but can see how they can't be as split resistant. A binding just below could reduce the chance of splitting out a piece of the belly.
Some of those nocks seem to have been used on the two-wood bows, and the standing part would then have been made of compression wood, which might or might not have have been tougher as a peg. Dunno.
Anyway, I love that it is so simple and so related to ancient types, and made of local wood. Cool Bow!