20 Furniture, mirrors, picture frames; goods, not included in other classes, of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum, rattan and substitutes for all these materials, or of plastics; products of birch bark, of bamboo, of animal claws and of animal hooves; plaited straw except matting; wickerwork; art objects of wood, wax, plaster or plastic; coral; air mattresses; mattresses; pillows; inflatable pillows; sleeping bags; bottle closures not of metal; flagpoles; keyboards for hanging keys; keyrings not of metal; display boards; signboards of plastic or wood; busts of wood, wax, plaster or plastic; mannequins; containers, boxes, not of metal; packaging containers, not of metal,; baskets, barrels, trunks not of metal