Sole measures 8 1/4” by 3 3/8”. Stamped PRESTON, TRADE EP MARK, PATENT, 2500P. Cutter also stamped E.P., PRESTON, PATENT. Complete with adjustable rest/mouth and both adjustable fences (marked L & R respectively). From the Preston catalogue "To compensate for the wear of the cutting iron through sharpening, the tool is provided with an adjustable sliding front, by means of which the user may always ensure a fine mouth, the result being that shavings are cut, as with a plane, instead of chippings. For working close into corners, either of the knobs may be removed and the cutting irons fixed on one of the end supports". Original handles with brass centres. A rare tool in excellent condition.