ALLENTOWN, Penn. - The Allentown Art Museum has received one of its largest gifts ever -- about 500 works plus the Long Island home and studio and Manhattan apartment of the modernist artist Peter Grippe. The collection of sculptures, drawings, and prints by Grippe, given by his widow, came along with works by other artists, including Willem de Kooning, Franz Kline, Alexander Calder, and poet Dylan Thomas. Grippe was a Cubist-inspired sculptor and printmaker of the New York School who died in 2002.