Guaranteed to fit Pfaff Sewing Machine Models:
1242, 1243, 1245, 1246, 1295, 1296, 1422, 1425, 1426, 1521, 1571, 242, 335-G, 3713-2/01, 3715-2/01, 3715-2/01, 3715-2/02, 3734-12/21, 3734-12/31, 3734-2/01, 3834-14/11, 3834-14/21, 3834-14/31, 3834-4/11, 471, 491, 422, 521