Hello,
I found in the drawer of an old workbench this strange tool without marking. This looks like a multi-function tool, a small saw that can enter the handle (partially) and locks with a small lever, a key-shaped head (9 mm) and a square hole of 6 mm. a length of 107 mm. It is in stamped iron, and a sphere flattened at one end. Could you help me find out if this is a craft tool and any other information (date, manufacturer etc …)?
  Thanks in advance