This listing reminds me of the old flea market/swap meet gambit called "Buy a Nail" (or sometimes "Buy a Penny"). It worked like this: A flea market dealer would have a table with a bucket of rusty nails on it, a cooler beneath it and a sign that said, "Buy a nail for a dollar, get a free beer." It was their clever way of getting around local alcohol sales limitations.
I'm not sure if this seller has any laws he needs to get around, but the angle he's working is this: If you buy this dilapidated 1988 Fred Manrique card for a quarter-million dollars, you'll also get a 10 percent stake in the movie he's making. And, just so you know what you're getting yourself into, he's included a portion of the screenplay in the listing.