Storm Clouds Over Santa Fe, circa 1940
oil,
signed lower right, titled verso
15 ¾ x 19 ? inches
Reference: 15510
Mount Webster (Colorado), 1960
oil,
signed lower right, titled and dated verso
25 x 41 inches
Reference: 25876
Untitled, March 1974
acrylic,
signed and dated lower right
64 x 50 inches
Reference: 18340
Untitled (Two Elk, Colorado), 1897
oil,
signed and dated lower right
16 x 23 ? inches
Reference: 15800
Hopi Point, Grand Canyon, Arizona, circa 1925
oil,
signed lower right "N.H. Knopf", titled verso
12 x 16 inches
Reference: 17965
Home Economics (Cornell University), circa 1937
oil,
attributed
28 ½ x 35 ¾ inches
Reference: 25278
Autumn on the Desert Edge, circa 1935
oil,
signed lower left, titled verso on original label
12 x 14 ¾ inches
Reference: 25764
Mountains in Spring, circa 1950
tempera,
signed lower right, titled verso
10 ¼ x 20 inches
Reference: 12009

oil,
signed lower left. Title and location inscribed on upper stretcher bar
10 x 14 inches
Reference: 19850
Untitled (Desert Landscape)
oil,
signed lower left, estate stamped verso
20 ¼ x 28 ¼ inches
Reference: 16955
Royal Gorge (Field Study), circa 1875
oil,
signed lower left
13 1/2" x 7 1/2"
Reference: 12116
Ranch Yard, Colorado, November 1933
oil,
signed and dated lower right, titled and dated verso
18 x 20 inches
Reference: 14138
Miners Cabin, Twin Lake, Colorado, 1884
oil,
signed lower left
20 x 30 inches
Reference: 20026