Thanks, Leg, I have no idea what date it is, just that its the only one I've seen with this mark, so thought I'd ask about it. As far as predating Brooklyn that would have had to be before 1884 then and after 1882. I understood he officially started his company in 1884, but moved to Brooklyn to make tools in 1882. I really should give it to someone who collects Williams, but I do not know of anyone who really does, jut more people like me who happen to have a few.