My old Wheeler and Wilson Family #9 was a 127 or 128 type treadle. Best darn sewing machine ever and I let it go for a Jap. electric. Sometimes you have to learn the hard way, but I will never forget my W&W and mourn it's loss. I sewed all of my older childrens clothes on it until mid-high school age. It had every attatchment known and I used them all. The needles were a problem but an old Kresge's store had a large round tin with little door all aroun it and you found your machine, opened the little door and the round wooden tubes were there with two or three needles inside.