Amazing piece of history.
This is no doubt a very special item.
Heroes and Legends are the biggest forgers in the market today, everything they sell is fake.
I've posted many times about Myron Ross and his "Heroes and Legends" (Or Zeros and Fakes). He's been at it since the late 80's at least. I saw him at a rock and roll autograph show back then when he was peddling a Hendrix signed album that was released after his death!
That must be the Myron Ross I ran into several times when working with others and Tim Fitzsimmons (sp?) I believe around 2006-2012 trying to stop all of these forged Captain Smith (Titanic) and Officer autographs coming out for the 100th anniversary of the sinking.
To what you said I saw a Bowie signed mag announcing his own death! ;)