Granny's Button Box: Singer Sewing Machine 221/222 Swiss Zigzagger and Walking foot No. 160991
The Incredible Singer Featherweight! – Nancy's Notions
Singer Vintage Tools
Zigzagger Attachment
Antique Singer Puzzle Box Sewing Machine Oak Wood Box With
Zigzag Attachment, 10 Disk with Cover Swiss Zigzagger & Walking Foot ( Vintage Original)
My old Singer machine and an interesting contraption
Sew Old - Sew New: 2012
Singer Walking Foot - Sweden
Walking Foot Sewing