I guess this falls under science, pretty amazing to see the thought process and early ideas of a genius as he develops he theory of relativity. This could be yours for somewhere between $2M and $3,5M though I would not be surprised if it went higher.
"The 54-page manuscript, which goes on sale Tuesday, was written jointly in Zurich by the Nobel Prize-winning scientist and Michele Besso -- a Swiss engineer and Einstein's collaborator, lifelong friend and confidant."
Sale of rare Einstein manuscript offers glimpse into the mind of a genius
"The 54-page manuscript, which goes on sale Tuesday, was written jointly in Zurich by the Nobel Prize-winning scientist and Michele Besso -- a Swiss engineer and Einstein's collaborator, lifelong friend and confidant."
Sale of rare Einstein manuscript offers glimpse into the mind of a genius