Here are a couple more pics. I haven't really looked at this thing yet, so I don't even know if it has a bobbin or shuttle. According to the site I looked at (link on page 1 by QuiltnCowgirl) this is a Model 27.
Whole machine with pedal
[ATTACH=CONFIG]196016[/ATTACH]
Tension
[ATTACH=CONFIG]196017[/ATTACH]
More attachments
[ATTACH=CONFIG]196018[/ATTACH]
OK so I guess I do have bobbins
[ATTACH=CONFIG]196019[/ATTACH]