Untitled (Spring), circa 1920
oil,
signed lower left, estate stamp verso
12 x 15 ? inches
Reference: 14797
Untitled (Colorado Mountain Scene), 1900
oil,
signed (W. A. Knapp) lower left
18 x 26 inches
Reference: 14636
Untitled (Winter, Colorado), circa 1935
oil,
signed lower left
19 ½ x 25 ½ inches
Reference: 15801
Untitled (Red and Blue Abstract)
oil,
signed lower right
47 ¼ x 29 ¾ inches
Reference: 26279
Untitled (Midday Landscape), circa 1915
oil,
signed lower left
11 x 15 inches
Reference: 20110
Untitled (Abstract Expressionist Composition), 1955
oil,
signed and dated lower right
15 ½ x 19 ½ inches
Reference: 13423
Untitled (Colorado Springs, Colorado), circa 1920
oil,
signed lower left, estate stamp on verso
12 x 16 inches
Reference: 14793
New Mexico Landscape, circa 1950
oil,
signed lower right
12 x 16 inches
Reference: 14897
Snow in Denver, circa 1935
oil,
signed lower right
14 x 17 inches
Reference: 14895
Across Baseline Lake (Boulder, Colorado), circa 1945
oil,
signed lower right, titled verso
16 x 20 inches
Reference: 13584
US 40, March 1970
acrylic,
signed and dated right side
24 ¼ x 71 ½ inches
Reference: 18426

tempera,
signed lower left and titled verso
15 ¾ x 11 ¾ inches
Reference: 21876
Untitled (Trees by the Stream, California landscape), circa 1930
oil,
signed lower left
9 x 12 inches
Reference: 20116
Untitled, 1964
oil,
signed and dated lower right
16 x 20 inches
Reference: 21703
Secluded Canyon, circa 1920
oil,
attributed to the artist
7 x 6 inches
Reference: 4341