Signed Note from John Lennon

by Doug
(Arizona)

Hi. I just bought an auction of a storage unit and it belonged to a musician. Inside, I found an old photograph of John Lennon and Yoko Ono. On the back there is a note from Lennon that reads: "Steve, you have but to give it - Remember?! Stay a friend! Love, John Lennon". I am wondering if it has any value, and if so, what that value would be?

Thanks.
Doug