This has both a Frank Caiazzo and a Perry Cox LOA and was signed in 1967. Don't see too many "first name only" Lennon's -- which makes it worth less than a full one so not for every collector.
It was authenticated by Caiazzo and Tracks UK. A first name only Lennon is rough, but it has great characteristics and apparently good provenance. Also, I’m not aware of a single Beatles autograph mistake from Tracks.
FB, it's great that you posted a closeup, but please also post a good image of the entire autograph when there is one. It helps determine authenticity more accurately.