Welcome. Glad you figured out how to post pictures. I couldn't blow the pictures up so that I could tell some of the details.. It says they can be larger, but most have found that it doesn't work. The instructions on how to post can be found at
Including Images and Attachments (as of 24 Jan 2020) or
https://www.quiltingboard.com/attach...020-01-17-.pdf
In case you just skim the pdf, a couple of things that I believe are particularly note worthy are that one must scroll over to the far right to find the "Upload" button to click and that I believe the picture maximum size may be incorrect, I think that the pictures need to be smaller than 1.9MB. Another thing that I noticed is that one can choose up to five images (if so desired) before clicking the "Upload" button. I also found that if you want to insert the image somewhere actually within the post, it takes a while for it to show the images that are available to choose (by clicking on the (paper clip icon) then you can click on which one you want and where.
There is a list of JA & JC numbers and manufacturers of said numbers at
http://www.doubleveil.net/zssmp/resources.htm
It starts about 2/3rd the way down the page.
I didn't see Morse as being one of the badges for those numbers. I don't have a Morse badged machine, but I have read many good reports for them. From what I can see in your pictures, it appears that there isn't a nose plate or top. Did you take them off to take the pictures?
Janey - Neat people never make the exciting discoveries I do.
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