20 FURNITURE, MIRRORS, PICTURES FRAMES, ARTICLES (NOT INCLUDED IN OTHER C LASSES) OF WOOD, CORK, REEDS, CANE, WICKER, HORN, BONE, IVORY, WHALEBO NE, SHELL, AMBER, MOTHER-OF-PEARL, MEERSCHAUM, CELLULOID, SUBSTITUTES FOR ALL THESE MATERIALS, OR OF PLASTICS