A vintage round blade turnscrew or screwdriver by SORBY of Sheffield.

Clearly marked 'I SORBY SHEFFIELD ENGLAND' with the Mr Punch trade mark on the steel ferrule.

Also marked 'I SORBY' on the fluted hardwood handle.

The shank is riveted through the ferrule and extends through the handle, please see close-up images.

There is a small split to one side of the handle, please see close-up image.

Some surface knocks and scratches.

8³/₁₆ inch long blade (to the base of the ferrule), ³/₈ inch wide at the tip.

14¹/₂ inches overall length.