Hey! I found this lantern, don't really know anything about it. What parts may be missing? I have what I believe is the top thing where you put the mantle on, but nowhere to hook it into. Can somebody tell what parts do I need? I was thinking of cleaning it up and putting some filament E27 bulb in some reversible way in case I can make it work as it should. Any tips on cleaning are welcome! Also, on the bottom it says 5 4 if I'm not mistaken, is that May 1934? How much do these lamps go for? I want to keep it though, just curious. Thanks!