Perhaps the cognoscenti can get permission to do an oral history project and just effuse on tape about the various technologies. I realize that this is all propitiatory intellectual property, but it IS in the interest of science to preserve it. People today today don't even know what any of the film manufacturing machines looked like. Imagine how difficult it will be to reconstruct them 100 years from now. Not trying to make any more work for people--just suggesting we do what is reasonable and convenient.