Labels:text | letter | paper | ink | document OCR: A Copse of Trees ca. 1500, red chalk 7 1/2 x 6 in. (19.1 x 15.2 cm) Windsor, Royal Library 12431r Leonardo may have intended this wonderfully atmospheric drawing as an illustration to his planned treatise on painting, particularly the section dealing with shadow and light. A note on the verso reads: "The part of the tree which has shadow for background is all of one tone, and wherever the trees or branches are thickest they will be darkest, because there are no little intervals of air. But where the boughs lie against a background of other boughs, the brighter parts are seen lightest and the leaves lustrous from the sunlight falling on them."
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