i took it apart.. the base has teeth like the others but on this one the lock nut has a threaded bolt attached to it which goes through to the plate.. im guessing at some point the parts were lost/broke and he put it back together as best he could. the inside shaft says 6 83
thanks for the info..tomorrow im gonna try and use a heat gun to get some of the house paint off to get a better idea.. even if fake im still happy with it ( not as happy if it was real :) ) cause i needed a vise and this thing looks pretty tuff and is about 70 lbs
i was looking through endless google images trying to find one with a base like i have.. most/all have that ring of teeth(as you said) where i have a clean base .. i have no clue if its a knock off of some kind