Did you by chance pick this up in Carroll, IA at the New Hope Thrift Shop as I met a young lady looking at a Kenmore the other day and it didn't have a manual either? Not knowing what model it was makes it difficult to find a manual for her. I'm just going from memory of what I can remember about the machine. We couldn't get the bobbin winder to wind but then not knowing much about the machine, we may needed to do something else to it to get it to wind. The 158 as well as the 1703 and 1803 looked similar to it.............if that's possible.
Thanks.