Actually, we met over a year ago, when I was looking for a treadle. I felt I didn't know enough to purchase this machine. Today I had training near the store, grabbed a quick bite of lunch, and went to see what was in the store. (They did have one other sewing machine--an electric Damascus with sewing table--I hadn't seen one of those machines before.)
This one was sitting in the same place it was in last year--hadn't been moved, and I'm not sure it had been dusted.
Machine, wooden case, some attachments. No manual.
I thought it was a 66, but it's not.
I misread the number. Thanks to the help of those helpful Treadleonions, and to the Ott Lite that yielded a different number after dark, I now know it was manufactured in 1939 and is a Model 99. (Thanks, onions!)
The motor and light are shiny. And clearly, the motor has been rewired to the foot control more recently.
I'm looking for more information on this machine--I'm guessing the folks at Treadle On can enlighten me.