It is lamentable that EK Co does not carry the vast array of sensitized
products they once did.
Finally, you need to call Eastman, do not rely upon catalogs such as their
Professional Products Catalog, it gives a rather incomplete listing of
their entire photographic products line.
Good luck to you. By the way, I spent more years than I can remember
printing from plates - 21/4 x 3-1/4 to 16 X 20, so I might be of help
should you end up with plates you can use.