Signed "Miles!" by the legendary jazz trumpeter to the back in black felt tip, alongside a large self-portrait sketch.  Davis signed the shirt in the lobby of the Hotel Okura Niigata during a 1985 visit to Japan.  In fine condition.

Miles Davis was notoriously prickly and a generally reluctant autograph signer.  Though authentic autograph signatures and (mostly late in life) signed photographs are obtainable, autograph material by Davis is rare.