This is a scarce early slotted bakelite Singer 221 Featherweight sewing machine foot pedal / speed controller. Note the 6 slots on the top, this style of pedal was only used for a short period of time in '36. Overall excellent vintage condition with minor cosmetic wear to the bakelite as expected. It has been cleaned / adjusted and is in good working order. The wiring and bakelite plug remain in good, usable condition. Original rubber feet intact. Simanco part #194372.