I have one of those reverser things new in original box, someplace. I really got into sewing machine collecting in 1998-1999. There was stuff floating around to buy back then that you can't find now, because back then was prime time for "old sewing machine guys" to retire and sell off everything that had been sitting around the shop for decades. And great for estate-sale machines, like virtually unused Centennial 201 with all accessories in a deluxe cabinet (dirty as all get out) for only $25 or maybe $50 at most.