Vintage and from the same estate sale.... Vintage or maybe antique "I.P. Hyde" industrial mill knife.  Walnut and brass.  Heavy and very strong. Condition:  Scales have no cracks or chips.  Works as it should.  SEE PICTURES. 4 1/2' when closed.  The blade may or may not be aftermarket or handmade.  Sharpened on the opposite side. Location D2