Correspondence, drafts, specifications, finance etc. for individual projects, e.g. Bible Study material, special campaign material, educational material. Note that there is usually no finished text in the files, and it is not always certain that the Society did publish the item.. Most of the files date from the late 1980s, but there are a few from the early '80s, and the 'royalties' file (no.67) goes back to 1977.