Two Men Contemplating the Moon, ca. 1825?30, Oil on canvas, 13 3/4 x 17 1/4 in. (34. 9 x 43. 8 cm), Paintings, Caspar David Friedrich (German, Greifswald 1774?1840 Dresden), These two figures are seen from behind so that the viewer may participate in their communion with nature. They have been identified as Friedrich, at right, and his friend and disciple August Heinrich (1794?1822)