Watercolor Color Study (with Toned Leaves on Reverse)I'll never leave behind a old art class painted color wheel, just such pretty things. This one executed in watercolor, three shades per circle (i. e. Red Orange Orange Yellow Orange) with fine graphite lines connecting the dots and noting the colors. 9" x 9" and in good condition, with some pretty leaf toning on reverse. C. 1940s or so I would guess.