oil on canvasboard, untitled [Palo Duro Canyon], no date; signed in oil "I Robinson"; signed and inscribed on verso upper left in charcoal "Isabel Robinson/Canyon Texas"; 12" x 16"
watercolor on paper (possibly from pad), untitled [Mexican Patio], by Isabel Robinson, no date; signed lower right in watercolor, Isabel Robinson; 8 3/4" x 11 3/4"
watercolor and pencil on paper, untitled [Lake Vermilion], by Isabel Robinson, no date; signed "I Robinson" lower left in watercolor; 7 9/16" x 10 7/8"
watercolor and pencil on paper, untitled [Juniper in Palo Duro], by Isabel Robinson; circa 1935; signed "I Robinson" in watercolor lower left; 10" x 7"