BRIEF DESCRIPTION
Predominantly mare area, which is penetrated by Mare Nubium from the south. In the west it adjoins the group of three craters Bonpland, Parry and Fra Mauro. The edge of a vast 'continental' area, which shows traces of the development of the basin of Mare Imbrium (faults, valleys, clefts), protrudes into this region from the east. The crater Davy Y contains an interesting chain of crater pits. Refer to your Antonin Rukl lunar atlas chart, page 113.

EARTH-BASED TELESCOPIC IMAGES:
Image - Davy (Cidadao)
Image - Fra Mauro (Cidadao)

RANGER SPACECRAFT IMAGES:
Image - Ranger 7 - First image of the Moon by U.S. spacecraft
Image - Ranger 7 image of Guericke crater from 1335 km
Image - First Ranger 7 P-camera images of the Moon
Image - Ranger 8 - Four images of Davy crater chain & Ptolemaeus from 1300 km

LUNAR ORBITER IMAGES:
Lunar Orbiter Database
Davy Chain, 35 km
Guericke, 58 km
Kundt, 11 km
Lalande, 24 km 
Mosting, 26 km
Palisa, 33 km
Parry, 48 km
Tolansky, 13 km
Turner, 11.8 km 

APOLLO IMAGES:
AS12-51-7507 - Lunar Module over Ptolemaeus, Herschel, and Lalande
http://www.astrosurf.com/lunascan/as12-51-7507.jpg

RESEARCH UPDATES:
Davy (Lunascan)
AS16-5410(P) - "Figure 8' crater near Guericke (SP-362,217)
AS16-1973(M) - The Davy crater chain  (SP-362)
Cross on the Moon? (Lunascan)
Mosting  A - (Lunascan)
The Briefing Room: The Shard (Lunascan/VGL)
Mosting A - The Valley of  the "Shard" (VGL)
The "Tower", "Cube" and "Shard" (lunaranomalies.com)
AS16-0849: Northeast of Lalande Crater (VGL)
3D Image of Rimae Parry  (Lunascan/Anomalous Images)
The Moon: Lunar Orbiter 4, The Davy crater chain on the Moon
Observations in Lalande (Lunascan list discussion) .
Earth's Moon: Apollo 16 Metric Camera Images (NASA)