- Created by
 - Museum of Modern Art (New York, USA)
 - Title
 - Invoice from the Museum of Modern Art for Schwitters’, ‘Paper Clouds’ collage
 - Date
 - 31 January 1949
 - Description
 - Collage was bought by the museum from Schwitters' estate.
 - Format
 - Document - correspondence
 - Collection
 - Tate Archive
 - Acquisition
 - Presented by Edith Thomas's son, Geoff Thomas, in 1995.
 - Reference
 - TGA 9510/3/1/32