I have a high shank foot, which is good because it means I can also use low shank or snap on feet with the appropriate adapter.
The 158 designation doesn't appear to help much when looking for a monogrammer. It simply means that it was manufactured by Jaguar in Japan. The actual model number is 840 (or 84) and I don't thin the Kenmore monogrammers work on this model.
It seems that the Kenmore monogrammers only work on machines that have a drive pin under the side plate, which mine does not have.
This is why I'm hoping to find a universal monogrammer that is driven by the needle bar or something.