Cattle, Two Grazing Cows and the Backs of Calves, Samuel Colman, American, 1832-1920, Graphite, brush and gouache on cream-colored paper., Recto: Vertical view of tow hind parts of calves at top; a grazing white cow shown in profile at center; and the same cow shown obliquely from the back at bottom., Verso in opposite direction: Two grazing cows shown from the heads, with the right one not entirely visible, at top., USA, 1875-80, nature studies, Drawing, Drawing