Sketchbook
Multiple realities
(covers information from several alternate timelines)
A sketchbook was a book filled with blank paper for drawing.
In 2259 of the alternate reality, Montgomery Scott's desk on Delta Vega had a spiral-bound sketchbook on it. (Star Trek)
In 2399, Soji Asha had a sketchbook in her bedroom. (PIC: "The Impossible Box")