Not sure if you can answer this, but if anyone on the board can, you can. I used to work and live in Chicago as a chemist. When driving to work in the early '90s I used to go by a very large Kodak building that was located in Oak Brook, Illinois. I used to dream of quitting my job and go work for Kodak since photography was my hobby. Gladly, I never did that as I'd be seriously out of a job now. I'm wondering if you knew what went on in that building. It was pretty large, and located in the Illinois Industrial Research Corridor. Was it a lab of some kind or totally different. Of course, that building closed down long ago and Kodak is no longer there.