Originally Posted by
LauraJJ68
Here is the model number to mine
3136261, I don't know if it has any other numbers besides the 9W. By donut do u mean the case doesn't come out and u just slip the bobbin in and close the latch? That's the style I have.
Laura
Laura, by "donut" I mean that the bobbin has solid sides (no holes) and the sides are curved, making it resemble a donut.
Joe posted pics of the 221 bobbin.