Hmmmmmm...I'm looking sideways at my treadle and wondering.......wondering......
My treadle is looking sideways at me and wondering......would she....would she......
I reckon Lizzie Lennard would be the one to google for that. Hmmmmm, I know over on "The Quilting Board" forum they have a section for vintage machine users..maybe wander over there and have a looksie at some posts or even post the question there?