In the area of historic preservation, the Fund acquired over the years a large collection consisting of over five thousand tangible items of Edisonia, namely, early electric lamps, vintage phonographs, motion picture projectors, and numerous other artifacts related to the inventions and discoveries of Thomas Edison. These items of Edisonia are on display in some eighty museums across the continental United States. With some frequency these exhibits are moved from one museum to another to enhance their public exposure. The Fund's Museum Coordinator pays periodic visits to these museums to insure that the Fund's properties are properly cared for and displayed. He offers advice, when needed, on how to make better use of the materials for the education and enjoyment of the American public and international visitors.