The Package - S8-E5
Corrected entry: In this episode, George finds out that Sheila, the photo store woman, is checking out his pictures during development. Right after he discovers this, he goes to Jerry's apartment and starts snapping pictures, one of which is of Jerry fiddling with his stereo with a screwdriver. Later on in the episode, Newman passes by the photo place and happens to see that photo being developed, so he confiscates the roll (which also includes George's sexy photos). The problem is, the photo of Jerry could not have been on that roll since George had already been back to the photo place at least once before after snapping the picture of Jerry. Jerry's picture would've been in the roll that had the picture of the scantily-clad model and of George posing with the Mercedes.
Correction: This is an assumption and there's no proof of this. After George noticed Shelia had been looking at his pictures, he took more pictures (next to the Mercedes and wax Burt) and dropped that roll off. He then started on his 3rd roll of film while waiting for his 2nd roll to be developed. Jerry with his stereo (and Jerry with Elaine) was on this 3rd roll. In addition, when we see Kramer about to start taking pictures of George, we never see Kramer or George load a new roll into the camera, and the sexy pics are on the same 3rd roll as Jerry with the stereo.
Bishop73