The IPA's director-general has made it his mission to get each of the living inductees - all 31 of them - to autograph the page devoted to them.
"I was joshing John Bartle about being included in it," Pringle says. "He offered to sign my copy and it all started from there. David Abbott might be hard to track down but at least Frank Lowe and Dave Trott are still around."
And what will happen to the precious copy once everybody has signed? "Eventually, I'd like to donate it to the History of Advertising Trust before I shuffle off to that agency in the sky," Pringle adds.