Billy,
It's Christmas at my house today. My husband brought home a Singer Treadle serial number AB755746. I did some research and I think it is a 1927, but i don't know what model it is. Can you tell by the serial number? It is nice and clean at least on the outside. The needle moves up and down and the treadle moves. I'm so excited.
Any info you can help me with will be helpful. Thank you in advance.