I have a 237 that I got new in the late 1960's. My daughter just gave it back to me and it still works fine. She lost the manual but I found one online that I printed out (free). Wish I could remember the site but I'm sure if you google it, you'll find it. It zigzags just like any other machine, was one of the last that didn't have plastic gears, and came with several feet. No cams though.