Seen above is the complete buttonholer attachment #160506 for a vintage Singer sewing machine in the original plastic case. The instruction book is included with 8 templates, which would also fit buttonholer #160743. Sizes: 8/2, 1 1/16, 5/8 (2 of these), 13/16, 15/16, 5/16, 1/2. There are several other vintage Singer parts up today and I will combine shipping if circumstances arise. Wait for invoice or inquire. Many thanks for looking.