No higher resolution available. Penny_Punch.jpg (download) (553 × 299 pixels, file size: 27 KB, MIME type: image/jpeg) About File History There is no description yet. Add a description. Appears on these pages of Penny Hofstadter/Gallery - Herself Add an image The Killer Robot Instability "The Killer Robot Instability" is the twelfth episode of the second season of the American... File history Click on a date/time to view the file as it appeared at that time. Date/TimeThumbnailDimensionsUserComment current02:26, April 14, 2012553 × 299 (27 KB)Stardustassault (wall | contribs) Retrieved from "http://bigbangtheory.wikia.com/wiki/File:Penny_Punch.jpg?oldid=30901"