This is an original Singer Sewing Machine 3 pin terminal male plug block and light switch. This was a special Bakelite block made just for the Model 201 that had the light switch mounted in the bottom of the block. If yours is broken or missing this one will fit and work fine. Includes the mounting screw. This unit is in great shape and ready to go on your machine. Switch has been tested.
Get Grandma's old beauty back in operation and in safe condition. What a great machine.