Antique Half Bisaigue or Twybill - Mortice Axe
A very nice antique French half bisaigue timer framers morticing axe or chisel.
Also sometimes referred to as a half twybill.
No handle is fitted into the socket as the socket itself is used to grip the tool.
Typically used to pare or clean up the sides of the mortice.
Marked 'MM' on one side.
The bevel edged blade is 15/8 inches (40mm) wide at the cutting edge, small chip to one corner, please see close-up image.
Approximately 24 inches (600mm) overall length.
A fine example.