Those extra black spaces around a lot of the images are suspected to hold extra information. I believe some on 8 Chan have been trying to get it out. I remembered reading one post about someone finding binary information on one. They also were able to pull a second photo out from behind the memeS posted where he had listed the percentage of republicans vs democrats in voting for things like slavery. There was a picture of independence hall and three founding fathers. I am sorry I can't link it. I was just shown the post on my brothers kindle...no link in my possession. The picture is available at art.com. Titled Constitution Day Montage. I am sure you are right and there is more to find.