The abrupt cropping of this composition indicates that Rothko painted on the full sheet (likely a standard size of 22 x 30 inches) before he cut it in half and used the other sides (fig. 1). See Related Works on Paper for the other half of the full sheet.
1. Composite image of the full sheet before Rothko cut it in half.
Mark Rothko: Works on Paper will ultimately document approximately 2,600 works from public and private collections worldwide. Cataloging is ongoing, and works and information will be added to the site during the coming years.