zomg
how, where
Basically, by being a filthy Akira nerd that's been collecting production art from the film for years. It's getting almost impossible to track down cels like these, especially anything with Kaneda's bike in full. So, I spent months sending out emails to anyone who sounded like they might have one. Then, 3 weeks negotiating with an ex-comic shop owner in London to work out a deal for these ones, which are undoubtedly the best I've got. They were pretty steep though, and that's before I send them on a round trip to a lab in the States to be prepped/framed.
That said, they are my pride and joy.