I have a Daisy that is dated in 1886. It is a fiddle base treadle coffin top. It is also a round bobbin, I didn't know they made round bobbins that early. The serial number is on the back side of the pillar and is upside down looking from the back. You have to look over the machine to read it. I haven't cleaned it up yet. I will post pictures when I start working on it. Serial number is 7 391 957.