Well, I had a nice long reply for you with information about Singer factories, but the system ate it or it went to alphabet heaven.
Do you have a manual? If not, any manual for a 191 should be the same, as the "J" just indicates it was made in the Canadian factory.
What do you need to know? Do you sew at all? Do you have any experience with older sewing machines? Let us know and we'll try to help.
bkay
Last edited by bkay; 12-14-2021 at 05:51 AM.
Reason: punctuation