This is how Flight reported the event at the time.
Flightglobal users voted the Boeing 747 to be their favourite civil aircraft in its 100 Greatest campaign last year to celebrate its centenary in publishing, which neatly coincided with 100 years of powered flight.
Picture credit Boeing (note - this is a 747-400ER and it flew for the first time on July 31, 2002.)
Aircraft profile: Boeing 747 including news, images, a cutaway, blogs, videos, forum discussions and Boeing 747 results from Flight's PDF archive.
Boeing charts the 747 milestones
AirSpace discussion on the 747 roll-out (40th anniversary last September)