A nice vintage brass mortice or mortise gauge.

Brass stem with oval brass head.

It is unusual for these gauges to have brass head stocks and this may well be a, well executed, improvement by the previous owner.

Turnscrew adjuster.

Good length pins.

Only a few minor surface knocks and scratches, please see close-up images.

No previous owner's stamps.

All parts move freely and tighten securely.

6⁵/₈ inches (168mm) overall length.

A nice example.