Oblique view of southern Mare Tranquillitatis, east of Maskelyne crater.  Part of Maskelyne D is shown at left, and the crater above left of center is Maskelyne J.
NASA
1969
Apollo 10 Flight Journal, Photography Index, 70-mm magazine R - AS10-31-4500 to 4674 <a rel="nofollow" class="external text" href="https://history.nasa.gov/afj/ap10fj/photos/31-r/as10-31-4588.jpg">AS10-31-4588</a>