Untitled (Footprint), July 20, 1969, printed 1979

United States. National Aeronautics & Space Administration

The Leader Sea Piece, plate 20 from Liber Studiorum, published March 29, 1809

Joseph Mallord William Turner

A Naval Combat. “- So, you insulted my flag!.... just you wait, just wait till I'll sink you with a broad side!..... or even better I'll splash you with water from left and right and behind and....” plate 20 from Les Canotiers Parisiens, 1843

Honoré-Victorin Daumier

Ophelia, from Twelve Characters from Shakespeare, May 20, 1775 (originally published); published 1809

John Hamilton Mortimer

Pair of Spoons, 1800–20

Covered Goblet (Pokal), 1713/20

Fatigues of the Campaign in Flanders, published May 20, 1793

James Gillray

“- What a fortunate encounter! It's my dear Stanislaus whom I haven't seen since we were in the sixth class together at Landernau.... in these times we used to share everything.... Things should be the same again, could you lend me 20 or 25 Francs?,” plate 2 from Les Amis, 1845

Honoré-Victorin Daumier

Paperweight, c. 1910–20

Bowl, 1904–20

Marshall Field & Co. Craft Shop

A Nice Lady or an Incomparable!!!!, published October 20, 1818

George Cruikshank

Visor Ledge east of Stand Rock, No. 20 from the series "In and About the Dells of the Wisconsin River", 1870/1908

Henry Hamilton Bennett

Chair Strip, 1900/20, Qing dynasty (1644– 1911)/ Republic Period (1912–1949)

South Side of King's College Chapel, Cambridge, 1815/20

Frederick MacKenzie

Untitled [from Circulation, October 12 #20], 1971, printed 2017

Takuma Nakahira

The Very Reverend Dr. Butler (Master of Trinity, Cambridge), c. 1893

Henry Herschel Hay Cameron

Counting: Intransitive (Red and Black), 1994

Mel Bochner

Sketchbook, 1981

Will Barnet

Racial Protest at Cornell University, Ithaca, New York, April 20, 1969, printed by May 7, 1970

Steve Starr

M 1/2 Ave., Galveston, Texas, July 20, 1975, printed 1976

Stephen Shore