Scan of a panel of original art from Jack's unpublished Fantastic Four # 102 (1970). 
Great liner notes by Jack, the ever serious Mr. Fantastic says, "That was no malfunction -- that was mega-power -- listen Sue -- I have a nutty idea."
Great liner notes by Jack, the ever serious Mr. Fantastic says, "That was no malfunction -- that was mega-power -- listen Sue -- I have a nutty idea."