Among others in Cincinnati, Davidson Hardware sold locks by the gross BUT that certainly does NOT mean that the gun was made in Ohio. Look at a map and see where Cincinnati is located. They sold a lot more, say, in Kentucky than in Cleveland! And the name on the lock in 99.999% of cases has absolutely nothing to do with who made the gun. As noted before, what you posted does no one a bit of good. If there is any chance at all -- and that is VERY slim in case of unsigned half-stocks--it will come from photos.