From local sewing factory liquidation. Found this in the mechanics area sealed in a box labeled "151W1 Ruffler". Looks to be a scarce attachment for industrial Singer sewing machine. Good condition. looks like it's all there. see my other listings for more parts from this liquidation.
ruffler attachment for SINGER 151W1 sewing machine, Business & Industrial, Manufacturing & Metalworking, Textile & Apparel Equipment