File:AS17-149-22787 (21911089541).jpg

Apollo 17 Hasselblad image from film magazine 149/KK - Lunar Orbit, LM Rendezvous
Part of this photo was used in Figure 28-12 of the Apollo 17 Preliminary Science Report (SP-330, 1973), which has the following caption:

On the eastern rim of Mare Crisium, a landslide was described in Condorcet A Crater, and a diamond-shaped floor was found in a fairly fresh crater (arrow) near Condorcet H.

The text of the report states the following (CMP is Command Module Pilot Ron Evans):

The CMP noted that the crater Condorcet H on the southeastern rim of Crisium displays an unusual diamond-shaped floor; he also noted a probable landslide in the adjacent Condorcet A Crater (fig. 28- 12):

I am just now passing that crater I took a picture of on the last time [Condorcet H]. And instead of having a round bottom, it has a diamond-shaped fill in the bottom. And the diamond, itself, is about one-half of the crater diameter. (CMP, rev 27)

Condorcet A [appears to have] a landslide on it. And it does not look like a crater on the side of the wall, on the northwest wall of the crater...The area is oval or ellipse shaped. Of course, the top of the ellipse is toward the top of the crater. And it looks like almost a flow out of the bottom of the ellipse, which is about a fourth of the way up from the bottom of the crater...The hole or the slope or the slide, or whatever you want to call it, down through there, is maybe one-eighth of the crater diameter. And the floor area is only just a real small portion of one-eighth size...There were some lineaments in the area; and, again, they are vertical-type lineaments downslope. (CMP, rev 28)