Poleaxes like these are wide spread and good documented during the late medieval era 14th-16th century.
It is similar to a halberd but instead of a thorn as counterpart to the axeblade it has a hammer head.
Length total: app. 78cm
Length top thorn: app. 25cm
Length shaft jaws: app. 53cm
Width axeblade-hammerhead: app. 25cm
Delivery content: 1 late medieval pole axe head