I bought one off this Forum last year I think porinted around 2001. Most data these days is online in PDF form, it can be difficult navigating Kodaks website.

In practice I find many of the older Data-books far more interesting and useful and have a boxed set of 4 from the 1940's, they also vary depending on where they were published. There were products made in Europe that were not sold in the US market and slightly different approaches to developers. Films also differed slightly so there was data for Canadian, British and US versions of Tri-X which were made & coated at separate plants. Tri-X also used to be coated in Hungary as well just before WWII - don't believe Kodak's recent hype7 or 8 years ago about it being 50 yeras old, that was only in small formats.