This is resting in a record store in New York City, and not for sale.
I'd definitely date this one 1976 or 77, based on what Freddie writes. For sure it's genuine.
Just for your personal delight :-)
I'am a bit in a split over that...the condition isn't new or good...
but for a 70's original wich hangs there completly unprotected it looks too good to be the original.
Is there a story behind it ?
That's a poster that came in the ADATR LP. It was signed to the fans club at London so I doubt it that one in NY is the original.
I also have a copy of it that came in the 40 years book.
BTW, looking back at the picture you've posted, it has the exact same fold as the one that comes in the book, so no, it's not the original.