I just googled it, and it looks like my 830 from that era, with maybe not quite as many fancy stitches. As a quilter, you would rarely want the special stitches anyway, and if it's anywhere near the quality of the 830 (and I'm sure it is!), it's a treasure. I checked the completed listings on eBay, and it looks as if they've been selling for well over $300 lately - impressive for any machine that's as much as 40 years old. Various feet and other parts are still widely available.
It uses the same foot pedal as the 830, and depending on the year yours was made, it might be among those that were recalled because of a few incidences of them running amok when nobody was sewing! Check to see that the pedal has a sticker with a "T" on it. If it does not, you might want to check with a Bernina shop. It's probably fine, but until you are sure about it, it would be best to unplug it from the wall when you're not right there.
Enjoy - you'll love it!