Heading
AO 391 (Rev. 5/81) and the title Apostille Specimen Signature Card.
AO 391
Apostille Specimen Signature Card
- Agency
- U.S. Courts
- Revision
- Rev. 05/81
- Fillable fields
- 17
- Pages
- 1
- Official source
- U.S. Courts form page
- Checked
- October 20, 2026
AO 391: Apostille Specimen Signature Card
AO 391, Apostille Specimen Signature Card, is a small U.S. Courts card form. The PDF is dated Rev. 5/81 and says it is printed on heavy stock paper, and cut to size (3" X 5"). It prints two identical cards on one page. The U.S. Courts page lists it under Other Forms, effective on May 1, 1981.
Each card has a signature line and a date, a line for the signature printed or typed, a line for capacity or title, and a space to affix a seal or stamp. The form prints no instructions and does not say who signs the card, who keeps it, or how it is used.
AO 391 is not a form the public files with a court. This page explains the form in plain words and is not legal advice. You can fill it out free in your browser on this page and download the result without an account.
What's on AO 391
Signature and date
A signature line with a date line beside it.
Signature (print or type)
A line for the signature printed or typed.
Capacity or title
A line for the capacity or title of the person who signs.
Seal or stamp
A space marked (Affix Seal/Stamp) to the right of the printed signature line.
Card size
The PDF says the card is printed on heavy stock paper, and cut to size (3" X 5"), and prints two cards on one page.
How AO 391 is filled out
- 1
Print it on card stock
The PDF says the card is printed on heavy stock paper, and cut to size (3" X 5").
- 2
Sign and date
Sign on the Signature line and write the date beside it.
- 3
Print or type the signature
Fill in the Signature (Print or Type) line.
- 4
Add the capacity or title
Fill in the Capacity or Title line.
- 5
Affix the seal or stamp
Place the seal or stamp in the space marked (Affix Seal/Stamp).
The card prints no instructions. These steps follow its lines in order.
Why fill Form AO 391 on indox
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- The official blank straight from the U.S. Courts, not a copy someone retyped
- Works on a phone, tablet or computer
Who keeps it, fees and format
Who keeps it
AO 391 does not say who keeps the card or where it goes. The U.S. Courts page lists it under Other Forms with no notes.
Fees
AO 391 does not print a fee.
Edition
The PDF is dated Rev. 5/81, and the U.S. Courts page lists it as effective on May 1, 1981.
Format
The U.S. Courts page offers AO 391 as a PDF that prints two 3" X 5" cards on one page.
Related forms
Who uses AO 391?
The card prints no instructions and no name of an office. It records one person's signature with a title and a seal or stamp.
Official sources and the blank
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Questions about Form AO 391
What size is AO 391?
The PDF says it is printed on heavy stock paper, and cut to size (3" X 5"). Two cards print on one page.
Who signs AO 391?
The card has a signature line, a line for the signature printed or typed, and a line for capacity or title, but it does not name who signs it.
How does the card relate to an apostille?
The title names it an apostille card. It asks for a signature, a capacity or title and a seal or stamp, the same three details that AO 393 says an apostille certifies. The form does not say how the card is used.
Is there a fee on the form?
AO 391 does not print a fee.
Is this page legal advice?
No. This page explains the form in plain words and is not legal advice.