Welcome, Scott. Hopefully, jlhmnj will be along and give you some additional information for your machine.
It looks like you saw the ismacs page that tells about Minnesota machines for Sears.
It looks like maybe the manual in post #7 of
New treadle may be helpful.
We like pictures. In order to post pictures on Quilting Board, you will probably need to reduce or compress the picture to a
file size that is smaller than 2MB. How to post images can be found at
https://www.quiltingboard.com/attach...020-01-17-.pdf
Don't forget to scroll over to the far right to find and click on the "
Upload" button.
I have found that only the big red "Reply" button or "Quote" work to give me the paper clip icon to work for adding pictures.
https://www.quiltingboard.com/attach...p-location.jpg
Some additional info regarding reducing images at post #4 and images for the scroll and upload button can be found at #5 of
quilt block ID?
Janey - Neat people never make the exciting discoveries I do.