Fits models: Pfaff 800, 801, 802, 803, 806, 807, 899, 905-947, 955, 1007, 1010, 1025, 1027, 1035, 1037, 1047, Pfaff 1050, 1051, 1067, 1069, 1071, 1147, 1150, 1151, 1171, 1371, 1471, 1472, 1473, 1475, 1540, 2010 2010, 2014, 2020, 2024, 2027, 2030, 2034, 2036, 2038, 2040, 2044, 2046, 2048, 2140, 2144, 2170, 6085, 6091, 6112, 6120, 6122, 6152, 6232, 7510, 7530, 7550, 7560, 7570