NEW YORK, NY.- Jonathan Prince, a sculptor whose recent works were the subject of a solo exhibition at Cynthia-Reeves in Chelsea, has placed a key sculpture, Light Box, in the noted collection of 20th- and 21st-century art of Julie and Edward J. Minskoff. Mr. Minskoff, President of Edward J. Minskoff Equities, Inc., a New York-based real estate acquisition and development company, creates buildings that are widely acclaimed as art forms themselves. Mr. and Mrs. Minskoff generously display much of their art collection in public view throughout their buildings. Light Box is now installed in the lobby of the former IBM Building at 590 Madison Avenue in New York, alongside works by Robert Indiana, Andy Warhol, Jeff Koons, John Chamberlain, Kenny Scharf, and Alexander Calder. Prince developed Light Box after reading an article in The New York Times Magazine about dark matter. The article describes how matter actually consists