| Title | Creator | Creation Date | ||
|---|---|---|---|---|
| 51 |
 |
At Five in the Afternoon | Robert Motherwell | 1949 CE |
| 52 |
 |
Untitled | Willem de Kooning | 1948 - 49 CE |
| 53 |
 |
Composition VII (sketch 1) | Wassily Kandinsky | 1913 CE |
| 54 |
 |
Panel for Edwin R. Campbell No. 4 | Wassily Kandinsky | 1914 CE |
| 55 |
 |
Composition 238: Bright Circle | Wassily Kandinsky | 1921 CE |
| 56 |
 |
Composition 8 | Wassily Kandinsky | 1923 CE |
| 57 |
 |
Accented Corners, No. 247 | Wassily Kandinsky | 1923 CE |
| 58 |
 |
Cubi XVII | David Smith | 1963 CE |
| 59 |
 |
Blackburn: Song of an Irish Blacksmith | David Smith | 1949 - 1950 CE |
| 60 |
 |
Voltron XX | David Smith | 1963 CE |
| 61 |
 |
Pillar of Sunday | David Smith | 1945 CE |
| 62 |
 |
Male and Female | Jackson Pollock | 1942 CE |
| 63 |
 |
Guardian of the Secret | Jackson Pollock | 1943 CE |
| 64 |
 |
Slow Swirl by the Edge of the Sea | Mark Rothko | 1944 CE |
| 65 |
 |
Calendars | Arshile Gorky | ca. 1946 CE |
| 66 |
 |
Descent into Darkness | Adolph Gottlieb | 1947 CE |
| 67 |
 |
Betrothal II | Arshile Gorky | 1947 CE |
| 68 |
 |
Onement II | Barnett Newman | 1948 CE |
| 69 |
 |
Onement I | Barnett Newman | 1948 CE |
| 70 |
 |
Excavation | Willem de Kooning | 1950 CE |
| 71 |
 |
1951-N | Clyfford Still | 1951 CE |
| 72 |
 |
Hudson River Landscape | David Smith | 1951 CE |
| 73 |
 |
Convergence | Jackson Pollock | 1952 CE |
| 74 |
 |
Horizontal II | Franz Kline | 1952 CE |
| 75 |
 |
Woman II | Willem de Kooning | 1952 CE |