Hi all, The price was good enough to take a chance on it even though I knew the bottom was missing and not exactly sure what it was. Now at home searching the internet, I believe it to be the 57. Besides the bottom missing a few other things bother me . It does not have the beading around the crown at the top that that I see on others. The weights look a little long? I also see there is supposed to be wood surrounding the dial but I don't see any evidence of any wood blocking or nail holes for the blocking to secure that missing wood. There is no key hole on the side for the door only a simple latch hook. However I did see that on another clock. There is no evidence of Waterbury on the dial. I think the hour and minute hand are correct but man are they ugly. The missing beading makes me wonder if this could have been on the end of a production run. Were there subtle difference between these clocks? Would the movement give a clue as to when it was made?