Singer Low Shank Sewing Machine Buttonholer Attachment in Black Case Simanco 160506

Vintage Singer buttonholer attachment set. This set is compatible with low shank models including the 15, 127, 128, 66, 99, 201, 221 & 222K Featherweight, etc. Comes with the rarley seen black plastic case (most are green), instructions, thumb screw, buttonholer #160506, throat plate cover with mounting screw, the 5 original templates plus set #160668 which contains 4 additional templates. Nice vintage condition, clean with typical signs of age / use. Original, genuine Simanco accessory.