Sewing machines based on the Singer 15 design are often referred to as "standard domestic", in particular their bobbins and needles. They were first introduced in 1895 with Singer model 15 and so are also known as "class 15", remaining unchanged to this day. Well, almost. :-) The bobbins remain indeed unchanged but the bobbin…
Bobbin Case #125291 For Singer 15-88, 15K88, 15-90, 15-91 Sewing
15-91 Bobbins and Bobbin Cases — Code Cat Corner
New Singer class 15 sewing machine adjustment screw for the bobbin case tension spring, also compatible with the model 206, 306 and 319 bobbin case
New Singer 15 206 306 319 Sewing Machine Bobbin Case Tension Spring Adjusting Screw
Bobbin Case #125291 For Singer 15-88, 15K88, 15-90, 15-91 Sewing
Singer 206 306 319 Sewing Machine Bobbin Case Original Simanco
SET of BOBBIN CASES. Fit for Consew Sewing Machine Models: 30 Fit for :SINGER: 31 class, 31-15, 31-16, 31-18, 31-19, 31-20, 31-22, 31-24, 31-27,
CKPSMS Brand - Bobbin Case fit for Singer 31-15, 331K Sewing Machine #62740# BC-31-15 (2 PCS)
Vertical oscillating hook – Vintage Sewing Machines
Bobbins – Vintage Sewing Machines
Eoehro 25 Pcs Bobbins for Sewing Machine, SA156 Bobbins, Bobbins Class 15, Sewing Accessories, Plastic Bobbin with Case(1 Box)
2 Pcs Bobbin Case #125291 for Singer 15-88, 15K88