Fits Singer models:
31K19, 31K21, 31K47, 44-76, 44-77, 44-91, 46K15, 57-2, 58-1, 58-13, 58-16, 62-25, 62-26, 62-27, 62-28, 62-29, 62-30, 62-31, 62-32, 62-35, 62-36, 62-37, 62-38, 62-39, 62-40, 62-41, 62-42, 62-43, 62-44, 62-45, 62-46, 62-47, 62-48, 62-49, 62-50, 62-51, 62-53, 62-55, 62-56, 62-57, 66-4, 66-8, 103-2, 103K2, 103K5, 103K7, 103K8, 103K9, 103K10, 105-1, 105-2, 105-3, 105-9, 106-2, 106-8, 106-9, 106-10, 106-11, 106-12, 106-25, 107W7, 109-220, 109-221, 109-222, 109-223, 109-224, 109-230, 109-300, 109-320, 109-321, 109-322, 109-420, 109-421, 109-422, 109-426, 109-520, 109-521, 109-620, 109-621, 27, 66, 115-2, 115W100, 115W101, 115W102, 117-1, 118W4, 127, 127-4, 127-14, 127K, 127K1, 127K2, 127K3, 127K4, 127K201, 127K212, 128-4, 128K, 131K1, 131K2, 138W103, 141D200A, 141D300A, 145W101, 145W102, 145W103, 145W201, 145W202, 145W301, 145W302, 146-80, 147-1, 147-2, 147-3, 147-4, 147-5, 147-6, 147-20, 147-21, 147-22, 147-23, 147-24, 147-26, 147-27, 147-28, 147-29, 147-35, 147-36, 147-37, 147-38, 147-50, 147-51, 147-60, 147-61, 147-80, 147-81, 147-82, 147-84, 147-85, 147-86, 147-90, 147-93, 147-100, 147-101, 147-102, 147-103, 147-104, 147-105, 147-106, 147-107, 147-108, 147-109, 147-114, 147-115, 147-120, 147-132, 147-140, 148-4, 148-5, 148-6, 148-7, 148-12, 149-2, 149-4, 149-6, 157-1, 157-2, 179W2, 261U11, 261U12, 261U13, 231-25, 241-11, 241-12, 241-13, 247-1, 247-2, 247-3, 256-5, 262-1, 262-3, 262-22, 262-24, 271W201, 300W101, 300W102, 300W103, 300W104, 300W105, 300W121, 300W122, 300W194, 300W195, 300W202, 300W203, 300W204, 300W221, 300W222, 300W302, 300W205, 300W294, 300W305, 300W321, 300W322, 300W402, 300W405, 300W421, 300W422, 302W101, 302W206, 302W406, 302U201, 400W3, 400W9, 400W15, 400W26, 400W101, 400W106, 400W107, 400W108, 400W109, 400W10, 410W9, 410W100, 410W101, 410W110, 402W100, 410W1, 410W10, 410W111, 451K1, 451K5, 451K11, 451K21, 451K31, 451K111, 451K101, 451K125, 451K105, 552B102, 552B104, 552B105, 552B107, 552B141, 552B142, 552B144, 552B241, 552B341
