Vintage 60s Singer buttonholer attachment with the Jetson atomic mint green styled case. This set is compatible with low shank models including the 15, 127, 128, 66, 99, 201, 221 & 222K Featherweight, etc. It comes with the original case, instructions, thumb screw, buttonholer #489500/489510, throat plate cover with mounting screw and the 5 original templates.