Wow...5 digits! Both of your machines are older than mine, serial number 434598. Looks like the cabinet has a drop leaf in the back? Mine has one on the side, and has the same "box" near the bed of the machine, but mine also has drawers.
How many glass inserts do you have? I don't recall what the manual says came with the machine, I have 5 or 6, plus a metal insert for narrow hemming.. Looks like the spooler (bobbin winder) is missing, it was on mine too, had to find one, took me a couple of years...it goes on the front of the leg of the treadle, in the "eyelet".
What a sweet machine for a sweet price!!
I can imagine in my mind how she'll look when you're done with her!