A new TV show centered on Jerry Seinfeld will reportedly include something remarkable and a little bit hard to believe: legal pads containing every joke Seinfeld has written since 1975.

Netflix noted the legal pads in an announcement for the show, “Jerry Before Seinfeld,” an hour-long special that rolls out on Netflix Sept. 19. The show presents a stand-up appearance by Seinfeld at The Comic Strip, a club that helped launch his career.

“Interspersed with never-before-seen material — including a library of legal pads with every joke he’s written since 1975, childhood videos, and more — Jerry performs the jokes that put him on the comedy map in an hour-long stand-up special, only on Netflix,” the streaming service says in an announcement for the special.

Here’s one of a number of photos put up on the Netflix Comedy Instagram page — a shot of Seinfeld pretending to sort through the old jokes …