The CASTLES poster combines the HST images of gravitational lenses into a three page montage.
The Postscript files can be downloaded in three page sizes.
 

Page 1	Page 2	Page 3
8.5x11"	8.5x11"	8.5x11"
11x17"	11x17"	11x17"
Poster size	Poster size	Poster size