We are preparing an exhibition on Nikola Tesla and his contributions to electrical science. There are some obvious books, e.g. Margaret Cheney's biography and the Lindsay Publications reprints of Teslariana, but we are looking for any out of the way material. For example, where are his original manuscripts and records - in former Yugoslavia or in New York (at G.E. or Westinghouse, perchance?) and elsewhere? We would particularly like photos and records from his Colorado Springs period. And then, he says cautiously, what about the "Philadelphia Experiment"??? There is a story that all of Tesla's technical papers were withdrawn from circulation immediately after the putative experiment. But are we entering the Twilight Zone here? (I do NOT want to wander by mistake into THAT sort of territory and we DO NOT want to visit Venus!) Any help, comments appreciated. Salutations from the World Beneath You, Geoff Holden Curator of Communications and all sorts of Odd Projects.