Oblique view of Kepler crater on the moon.  Cropped from Lunar Orbiter 3 image.
NASA
1967
Lunar and Planetary Institute, Lunar Orbiter Photo Gallery<br>Lunar Orbiter 3, image 162,  <a rel="nofollow" class="external text" href="http://www.lpi.usra.edu/resources/lunarorbiter/images/print/3162_med.jpg">med</a>