That axe head looks fearsome!
Merry Christmas to you, and hope this is something Santa gave you.
I saw a sword with a perforated cross on the crossguard and polearms with trefoil perforations in the history museum in Ljubljana, Slovenia on a visit. Slovenia used to be known as Carniola, a Duchy of the Austrian part of Austro-Hungary. I think this axe may have come from the region of South Eastern Europe or possibly Poland that formed the line of defence against Ottoman expansion into Europe. The stakes were very high so arms and armour took very functional proportions in what was an existential struggle to people in the region. Not only were there regular invasion threats, but there were also constant slave raids by Ottoman irregular forces who abducted thousands of farmers and dwellers in the region and sold their captives for profit in the slave markets in Sarajevo and elsewhere.