Here's a link to a manual for it:
http://www.manualowl.com/m/Pfaff/332/Manual/333705
It's a trip, if you sew one of the decorative patterns, those dials in the middle there will move around a bit. Spooked me the first time I saw that, I first thought something had broken and they were coming loose!
You'll need the design wheel to figure out the decorative stitches. I didn't get one of those with mine so I ordered one from a fellow in Germany through eBay. It should be here soon - I think it's a repro and not an original but that's OK with me. You have to change settings in 3-4 places to get each specific stitch. So far in playing around with the knobs without the wheel, all I get are ragged zigzags, LOL.
It looks like you're missing the light switch button too.