TENSION Singer 242 252 257 360

Singer models 237, 239, 240 series, 250 series, 277, 288, 327, 328, 329, 337, 338, 347, 348, 350 series, 360 series, 401, 403, 404, 413, 416, 418, 457, 466, 476, 477, 478, 500, 503, 502, 507, 509, 513, 522, 527, 533, 600 series, 6211, 7015,7101, 7102, 7105, 7108, 7110, 7136, 7146, 7174, 7184, 7186, 8134, 8234, 8734, 8834, 8500/8600/9500/9600 series, 8734, 8834, 9900 – Alternative number 422403-455