I found one at an antique mall in Albuquerque a few years ago. Excellent shape and sews like a wonder. I learned to piece on the older 830 Bernina which was not a computer machine and sadly it was stolen. Got new computer Bernina and it is great for fashion sewing but hate it for piecing. The older machines react immediately to your command, the computer machines take a stitch to get the command. You can get a 1/4 foot for them now too. The one with the side piece that won't let you get it wrong. Lots of sites on internet. The book list the year one was made by the serial number. Wouldn't take anything for mine and I have six machines.