Originally Posted by
elnan
The 301A does NOT take class 66 bobbins. It's bobbins are same as the ones for a Singer Featherweight.
So you learn something new everyday. I have a 301 and a Featherweight, and never realized the bobbins were the same, but they are. I use my FW more than the 301, so I put more of them into the FW case.