Historical information
Very old. The design of wrenches has varied over the years. This one has a screw/nut that moves the moving jaw towards the fixed jaw.
Significance
Used by residents of the Kiewa Valley
Physical description
Solid steel. This wrench is a tool used to provide grip and mechanical advantage in applying torque to turn objects eg. nuts and bolts. This wrench is adjustable - by turning the 'nut' in the middle of the tool it allows the 'jaws' of the wrench to open to the required size.