Rare Singer Sewing machines 221 201 66+ embroidery attachment Number 26538

Description

Fully tested working Singer embroidery attachment. This one uses one embroidery thread as opposed to the 35505 model that uses two threads.
I cleaned this attachment and let it sit in oil for 24 hours.  Then I made sure all the moving parts were working smoothly and tested it. Please see the samples in the photos. They were done after I did the thorough cleaning.
Included:
Attachment
original spool pin
original instructions
Original box, in two parts.
full insurance and direct signature are required for this item.
Thanks for looking.