Original Bernina attachment, to fit old style models. Series 500, 600, 700, 800 and 900, including:

530, 530-2, 531, 532, 532-2, 534, 540, 540-2, 542-2 

600 (NOT deco), 610, 614, 640-2, 642-2, 644

700, 707, 708, 709, 717, 718, 719, 730 (not Artista 730), 731, 732, 741, 742, 744

800, 801, 801s, 802, 802s, 803, 803s, 807, 808, 809, 810, 811, 811s, 817, 818, 819, 830, 830e, 830H,  831, 832, 840, 841, 842, 850

900, 900E, 910, 910N, 930, 931, 932, 940, 950"#