In the mid-1960s, Warhol carried his consumer-product imagery into the realm of sculpture. Calling to mind a factory assembly line, Warhol employed carpenters to construct numerous plywood boxes identical in size and shape to supermarket cartons. Then, with assistance from Gerard Malanga and Billy Linich, he painted and silkscreened the boxes with logos of different consumer products: Kellogg’s corn flakes, Brillo soap pads, Mott’s apple juice, Del Monte peaches and Heinz ketchup. The finished sculptures were virtually indistinguishable from their cardboard supermarket counterparts. Warhol first exhibited them at the Stable Gallery in 1964, cramming the space with piled-high boxes that recalled a cramped grocery warehouse. He invited collectors to buy them by the stack, and though they did not sell well, the boxes caused much controversy. In reference to his boxes, Warhol later said that he “wanted something ordinary,” and it was this mundane, commercial subject matter that infuriated the critics. The perfectly blank, “machine-made” look of Warhol’s boxes contrasted sharply with the gestural brushstrokes of the popular Abstract Expressionist paintings.