Interesting research came across my news feed today. Turns out those bronze age copper daggers they find in ancient tombs were designed for processing animal carcasses. Basically the proto-deba. Cool stuff.
Phys.org: Research finally answers what Bronze Age daggers were used for.
phys.org
Phys.org: Research finally answers what Bronze Age daggers were used for.

Research finally answers what Bronze Age daggers were used for
Analysis of Bronze Age daggers has shown that they were used for processing animal carcasses and not as non-functional symbols of identity and status, as previously thought.