Originally Posted by vintagemotif
Nancy,
Here are what the bobbins look like for the Singer 66 and Singer 15.
The bobbins on the right are for Singer 15; both are flat; one on top is new and one on bottom is old. The bobbins on the left are for Singer 66; both are curved or domed; top bobbin is new and bottom one is old.
Thank you Vintagemotif, the only Singer I have that actually has a domed typed bobbin is my 99K. That bobbin looks similar to the one you show. I tried it in the 66 and it doesn't work. I also tried the - supposedly - class 66's I got today from my sewing repair man, they don't work either because they look exactly like the bobbins for my 15-88. They are flat with lots of holes all around.
There is a very old sewing repair man near my Father-in-law that I know will know which bobbin I need. I will go see him this week.
Nancy