Found it (8.5 mb)
Here's the image referred to in the Cushing paper
Scroll to the top of the image to see sunlit floor of “skylight” candidate Dena, corresponding to view 'A' of Figure 1 from here
Space/Science » in reply to MOC image of sun lit floor of Dena
Here's the image referred to in the Cushing paper
Scroll to the top of the image to see sunlit floor of “skylight” candidate Dena, corresponding to view 'A' of Figure 1 from here