The original. The copy is for your filing purposes and as a backup.
In writing any letter, it is best to state simply why you are writing and what you want the recipient of the letter to do. In this case you must have submitted, or be planning to submit, an original certificate for some reason. Say what and when you did or will do that, then ask that the original be returned to you.
K is how they spelled it.
[object Object]
The best place to find a buyer for an original photograph and letter written in 1933 of Carrie-Jacobs Bond would probably be on Ebay.
Omicron
Original
expected, expertly
The original scarlet letter was "A." Since it stood for Adultery, it may not be appropriate for school.
The edits can give more information.
Signed Directly (on the original physical paper for same physical document)
Natural