Hello I am in wichita Kansas I have several bikes including a Phat Kaddy Cruiser I also have an Electra coaster 3 but more about these later I just bought a Hawthorne 24" at a roadside flea market it has a skiptooth sprocket and the sprockets are intact although the chain is a little rusty the fenders are in suprisingly good shape and the chain gaurd is not rusted through and all the brackets are intact all in all a good buy for 35.00 my question is this how do I date this bike obviously it is 40 - 50 era bike but how do I make sure it is not a very good collectible before I add drum brakes and a 3 speed hub I also belive the fork has been replaced it is not a stamped fork as I would have thought but a 70s style one with the stacked caps I will send picts later another thing I found strange is that the frame is not like any hawthornes that I have seen most are welded below the seat tube where the top tube meets it this frame has the tubes tapered together and welded it is a really good look I just dont want to tear this thing up much if it is a uncommon bike