If you zoom in(ctl + scroll wheel on your mouse) the image of JM's birth certificate, you can see there are some letters which look to be under the U S A in the "Father's Birthplace" & "Mother's Birthplace" fields. There are also some letters in the "Place of Birth" field.
In the "Place of Birth" field: There is an "A" in front of the "C" in Colon. To the right of the word Panama, there is what looks to be "uan".
In the "Father's Birthplace" field: There is an "n" between the "U" and "S". There are other letters, but I can't make them out enough to unequivocally say what they are.
In the "Mother's Birthplace" field: To the right of U S A in the "Mother's Birthplace" field, there is what looks like "ap" _ _ _ then what could be "de" _ "an" (very faint) and then "ama".
I think this is the raised seal which certifies the certificate.
Click on the image for a larger version. Zoom in or out using the scroll wheel on your mouse + the Ctl key.
I think the U S A in both the Mother's Birthplace and the Father's Birthplace were added after the raised seal. The font is different from the rest of the document. Compare the capital A in U S A to the capital A in August under Date of Birth. I have no theory as to why this was done.
I might be able to convince myself that that is an impression of a seal.
It could just as easily be something transfered from another document, say one that was stored with the BC and pressed against in in a crowded file?
Good eye, though!
>>>In the “Father’s Birthplace” field: There is an “n” between the “U” and “S”.
Wow, I think you are right!
Why is this? What is the point of messing with this birth certificate?