I have been watching for a Rockwell F3a 12" jointer by SCM for quite a while. One came up on an auction site a couple of weeks ago and I won today. SCM (now SCMI) made this F3a for Rockwell in 1975 and 1976 and I'm told they sold for $6K new. The one I bought has some minor surface rust on the bed but is otherwise complete. I paid $750.
Here is a pic from the auction site. Pics from my shop when I get it home later this week.