dsc35605.jpg

Mockup of Hubble's forward section. I believe this is a mockup of the light shield and forward shell.

This mockup is located near the thermal vacuum chamber and the clean room for the Solar Dynamics Observatory propulsion unit.

Pages 5-3 and 5-4 of the Hubble Space Telescope Servicing Mission 3A Media Reference Guide [direct link to 695K PDF] (p. 3 and 4 of the PDF) contains additional information and diagrams.