Looks legit except for the timing lever which was used on later model high tops. It should look like the one in the picture. It is the part that is moved by the clock. Someone might have changed it out to make timing the mech easier. Or it may have been a later model that was made using the newer part.
I agree with oldslotman, so far looks correct ,except that part. it's not a reproduction machine , if that's what you were afraid of. correct factory colors (2 versions only, I have the other late paint colors). more photos might be needed ,but looks o.k. right now. added plus the cash box lock door. jeff H.
My timing lever is the same as the one you just bought. ser.# on mine is 541369. what is yours ? note mine in the other factory colors to match the jewel bells. all 3 hidden away since 1951 in Boston till a few years ago.