In the edition of 5 published impressions with hand additions, each is designated by the artist as a "study." (Usually in this catalogue, the term “study” describes photocopies and tracings that were used in the process of developing a composition.)
A separate edition of this composition was published as part of an illustrated book titled, "One's Sleep." The illustrated book includes 18 plates with hand additions. (See Evolving Composition Diagram.)
The type of paper, as well as medium of the impression number and its placement on the verso, is not documented because this impression is not in MoMA's Collection and could not be examined in person. The impression number was provided by the Louise Bourgeois Studio.
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