Up for sale is a Gathering/Shirring Foot  for Bernina old style sewing machines.

The Gathering Foot can be used for lightly gathering fabric as well as attaching the gathered edge to a flat (ungathered) fabric, at the same time quickly and easily. The gathering foot will allow the sewer to gently ease or slightly gather fabric for various garment and home decorating applications. 

Fits Bernina Sewing Machine Models:  1000 series 1000, 1001, 1004, 1005, 1006, 1008, 1010, 1011, 1015, 1020, 1030, 1031, 1080, 1090, 1120, 1130, 1230, 1260, 1530, 1630 900 series 900, 910, 930, 931, 932, 940, 950 800 series 800, 801, 802, 803, 807, 808, 809, 810, 811, 817, 818, 819, 830, 831, 832, 840, 841, 842, 850 700 series 700, 707, 708, 709, 717, 718, 719, 730 (not Artista 730), 731, 732, 740, 741, 742, 744 600 series 600, 610, 640 (not Artista 640), 642, 644 500 series 530, 532, 534 and 540