Name this Singer attachment
What is this? This came in a mixed lot of attachments. It does not appear to be a ruffler, although it moves similarly by feeding fabric through as the finger moves with the needle bar.
Front:[ATTACH=CONFIG]605781[/ATTACH]
Back:[ATTACH=CONFIG]605782[/ATTACH]
Bottom:[ATTACH=CONFIG]605783[/ATTACH]
Singer logo (no part number found):[ATTACH=CONFIG]605784[/ATTACH]