This is a real seal, used correctly by the FAA for securing a document or media.
Notice that the embossed foil seal overlays the envelope at the place that this envelope can be opened.
Any other use of a seal such as this is incorrect and fails to allow for a claim of chain-of-custody of a legal document.

The incorrect use of a seal essentially voids any chance of proving that a piece of paper or parchment is a true document, as tampering could otherwise have occurred.

( please excuse the sloppiness of the presentation. Just wanted to get the pics. uploaded. Borrowed someone else's phone to upload. Will clean up later. )

This is a real seal, used correctly by the FAA for securing a document or media.
Notice that the embossed foil seal overlays the envelope at the place that this envelope can be opened.
Any other use of a seal such as this is incorrect and fails to allow for a claim of chain-of-custody of a legal document.

The incorrect use of a seal essentially voids any chance of proving that a piece of paper or parchment is a true document, as tampering could otherwise have occurred.