Vintage Singer Buttonholer Attachment No. 489500 / 489510 With 5 Templates. This is a pretty cool piece of history  from the 60s but as I am not a Tailor I have no idea how it works. Contains 5 templates, instructions, and everything you  see in the pictures.   Ships from Florida next business day.  used Singer Buttonholer with case and 5 templates.  Sewing machine and case have normal light wear.  There are no visible defects.  Instruction book is all legible and still in good condition however it is lightly wrinkled due to being stored.  See all pictures