1971
Kelpra Studio, 1964
Kelpra Studio, 1970
Motherwell, Robert, 1972
Marlborough Graphics, 1997
Motherwell, Robert, 1953
Motherwell, Robert, 1959
Kelpra Studio, 1971
Kelpra Studio, 1969
Marlborough Graphics, 1974
![Study VI, New York Harbor [recto, #31, blue-green]](https://api.nga.gov/iiif/f4c56361-93dc-4343-bb60-35952df6bb03/full/843,/0/default.jpg)
![Study VI, New York Harbor [verso, #41, red-gray]](https://api.nga.gov/iiif/4ef93c79-2dcc-4f67-a9fc-1946bbe66228/full/843,/0/default.jpg)
