No permission is required.

1. First, the photo is a mechanical scan/photocopy of the original cover and does not qualify for independent copyright protection.
2. Second, the dust jacket was first published prior to 1978 without a valid copyright notice. To Kill a Mockingbird was first published in 1960; the hardcover book itself carried a copyright notice, so its contents remain copyrighted. However, the first-edition dust jacket did not carry a separate copyright notice. According to , § 2207.1(C) at p. 15:

"A notice of copyright on the dust jacket of a book is not an acceptable notice for the book, because the dust jacket is not permanently attached to the book. Likewise, a notice appearing in a book is not an acceptable notice for the dust jacket or any material appearing on that dust jacket, even if the book refers to the jacket or material appearing on the jacket."

Numerous sources can be used to verify the dust jacket's lack of a copyright notice:

• at Raptis Rare Books – a guide to identifying first editions of the book
• at the Gianakos-Safos Collection – a collection of images of a first edition, which together show the dust jacket in its entirety.
• at Whitmore Rare Books
• at Peter Harrington (with complete scan)
• at Flashbak – first image is a full scan of the dust jacket.

And so on.

Keep in mind that the pre-1989 requirements for copyright notice were highly formalistic and, other than a few enumerated exceptions, required these three elements:

1. "The symbol © or the word 'Copyright' or the abbreviation 'Copr.' or an acceptable variant such as "(c)";
2. "The year of first publication for the work"; and
3. "The name of the copyright owner, or an abbreviation by which the name can be recognized, or a generally known alternative designation of the owner."