It's part of the Private Collection of Robert Rauschenberg show that takes up three full floors of the gallery. Bob really dug Jean Tinguely. In addition to Radio No. 1, there are a number of drawings for other constructions, including one signed "pour Bob" of the infamous Homage to New York. A contraption on a far grander scale that Tinguely exhibited at MOMA in 1960, it was intended to self-destruct, but failed. An allegory for New York or just a French farce?