Stone, bronze, or iron.
Polished stone axes, socketed and flanged bronze axes, and iron axes each belong to different ages and technologies. Look at how the haft was fitted — perforation, socket, or wings — and at casting or forging marks.
The bronze sequence is its own chronology: flat axes first, then flanged, then palstaves, then socketed axes with a side loop — a progression that spans the Bronze Age and dates a find to within a few centuries.
Stone axes were flaked to shape and then ground and polished; traces of the earlier flake scars often survive under the polish. A perforated shaft-hole in stone marks a battle-axe or axe-hammer tradition.
Casting seams, hammer marks, and edge damage tell how it was made and used. Record completeness honestly — butt fragments and cutting-edge fragments are common and still identifiable.
Identifying arrow and spearheads
Identifying swords and daggers