I happened upon a Wheeler & Wilson No 8 with the original treadle in great condition for its age- bill of sale says it was purchased October 1879. What kind of demand have you seen for a machine like this? I'm guessing they are common enough to not be a super valuable antique. I can certainly just put it up on marketplace or craiglist and see what it fetches if that's my only route. Hoping to find it a good home. Not so concerned about the money.