This is a very nice vintage upholsterer's hammer with the square eye at one end and the split round eye at the other end. It is marked on the handle "STANLEY H304 5 OZ. U.S.A.". The head is in great shape, very little if any wear, the handle fits perfect, has a few dings on it but in very good useable condition. The hammer is 10.25" long overall, the head is 4" long. A nice quality made hammer in great shape!