Scientist (1914-2006) for whom the Van Allen radiation belts were named following the 1958 Explorer 1 and Explorer 3 satellite missions. Four items: glossy 10 x 8 photo of an Explorer IV diagram, signed in black felt tip, “JA. Van Allen”; a 10.5 x 8.5 1972 souvenir card of the 1960 Echo 1 Commemorative stamp, signed in black felt tip; a 10.5 x 8 National Aeronautics and Space Administration press release, signed in black felt tip; and a March 1959 edition of Scientific American, signed on the front cover in black felt tip. In fine condition, with light overall corner creasing. RRAuction COA.