No worries on the photo use, happens all the time--though I did tell Mark Harlan to give you a hard time about it. 😉 [Feature request for Cake: it would be nice if there was an optional "photo/image credit" field when attaching an image.]
Unfortunately I don't have any of the open-board prototypes or wooden mock-up devices from the early days. Pretty sure all those had been swiped before I got there in 1995. Do you (or any other Magicians here) have photos of any of those?