This was taken from the manuscript of the portfolio for reproduction by Thames & Hudson -- Source of annotation: Marvin or Ruth Sackner.

The print by Chopin, entitled "Rockets" is numbered 1/XXX and is flat in contrast to the folded print in the limited edition portfolio. Similarly, the drawing with handwritten text by Heidsieck is part of the maquette along with an unfolded print. This drawing is a chronologic accounting of the relationship between Heidsieck (BH) and Chopin (HC) from extracts of letters. The latter is listed in the database as a separate entry but is stored in the Chopin drawer. This work includes seven original typwriter poems made by Chopin. -- Source of annotation: Marvin or Ruth Sackner.