Please crop images like this closer if you can so they're easily viewable on phones, which is half or more our viewers. And also posting an image with the autograph right side up helps, either the entire image or a closeup.
It's a promotional photo for the movie "Love Me Tender," which came out in late 1956. I haven't studied Elvis closely enough to date most of his autographs confidently, but I'd say between then and 1961.