Singer buying Simanco 28915 Imitation Hem Stitcher

Singer Simanco 28915 Imitation Hem Stitcher, fits vertical low shank sewing machines including the Singer 15, 66, 99, 101, 127, 128, 185, 192, 201, 221 & 222K Featherweight sewing machines ,
May need a buying good clean to suit purpose or use
Please see all pictures for more detail as they form part of the description