I need to look for a bobbin winder! didn't know that about this machine either...
and I get confused on bobbins all the time- I finally made a little cheat sheet for several and stuck with the machine..sigh..hopefully it will help. I put bobbin, direction bobbin fits in case (or in the slot or whatever it's called) and which way the needle goes in and which way the thread goes through the needle :o

Nice looking machine, and a sweet case!