"Die Katze" fuer Iris-Jasmin, 1964
1 m + 1 m + 1 m + 1 m = 400 cm, 1994
1 m x 1 m, 1993
1 pied 1/2 pied 1/4 pied 1/8 pied 1/16 pied 1/32 pied, 1995
1 step - 100000 steps, 1972
1 x 1 royal cubit, 1999
1°2°3°4°, 1997–98
100 this-way-brouwn-problems for computer I.B.M. 360 model 95, 1970
1000 mm 879mm, 1978
1m 1 step, 1976
1x1 step 1x1 m, 1986
24,698 Days (100 Years Calendar), 2000
a distance of 2232 ells, 2000
a distance of 2444601 feet, 2000
a distance of 336 steps, 2000
Acropolis, 1869
afghanistan – sambia, 1971
Androscoggin Valley, 1859
Anomaly #1, 1974
Anomaly #10, 1974
Anomaly #2, 1974
Anomaly #3, 1974
Anomaly #4, 1974
Anomaly #7, 1974
Anomaly #9, 1974
Ausable Gorge in the Adirondacks, 1870
Bay of Baiae, 1847