Looks OK to me as well. They signed this for the controllers at the airport. They left London to begin their last tour...they had a brief stop in Boston...before heading off to Chicago.
Fantastic, assuming it is not a copy of course. To me such an item is far more desirable than a signed publicity postcard but I know "the market" thinks otherwise. The paper looks a little trimmed at the top but I would gladly live with that.