FOOT Pfaff 7570 1/4 Quilting without Dual Feed

For Pfaff models 933, 939, 955, 1006, 1007, 1050-1171, 1371, 1467, 1469, 1471, 1472, 1473, 1475, 1520, 1530, 1540, 6091, 7500 series without dual feed (no cut out in back of foot)