Terminal Receptacle, BAKELITE with FLAT PRONGS, Singer Featherweight (Vintage Original) nonfw Instruction Manual & Original Box ut-kit-item BOO-FRM20327-148 and it was commissioned Design:1952 Christmas

Instruction Manual & Original Box with the heavier duty Thumb Screw

thread guard plate and two discs

What an amazing little contraption this is -- Singer ingenuity has no bounds

it is one of the Teacher's Textbook publications that includes information about the portable machine (see photos)

Use it for darning or free-motion machine embroidery

Terminal Receptacle, BAKELITE with FLAT PRONGS, Singer Featherweight (Vintage Original) nonfw Instruction Manual & Original Box ut kit item BOO FRM20327 148 and it was commissioned Design:1952 Christmas Instruction Manual & Original Box with the heavier duty Thumb Screw thread guard plate and two discs