A PRESTON 1388P patent adjustable circular quirk or grooving router.

Fitted with a PRESTON cutter marked 'PRESTON BIRM ENG PATENT' with the EP trade mark.

2 curved fences.

Retains almost all of the matt black finish throughout, please see images.

All parts move freely and tighten securely.

12¹/₂ inches overall length.

A nice tidy example, please see images.