Signed book: Warhol: Campbell's Soup Boxes. Los Angeles, California: Michael Kohn Gallery / Martin Lawrence Limited Editions, 1986. Paperback, 10 x 11, 36 pages. Signed prominently on the first free end page in black felt tip by Andy Warhol. In fine condition. Accompanied by a letter of authenticity from Beckett Authentication Services and by the original packing slip from Martin Lawrence Limited Editions.