Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. information artifacts
7. [information artifacts by physical form]
8. books
9. [books by internal form]
10. albums (books)
11. letter books

Anotations

Scope note:

Volumes containing reproductions of correspondence, made directly from originals through a transfer process. Using a screw-powered letter press in conjunction with a press book, a bound volume of blank, tissue paper pages. Letters written in special copying ink were placed on a dampened page. The book was then closed and the mechanical press screwed down tightly, causing the ink to be transferred to the bound page.