AN AMSTERDAM SCHOOL STAINED AND LEADED GLASS HANGING-LAMP, the flaring top tapering to an inverted dome-shape underside, of irregular octagonal section, variously shaped pieces of polychrome and milky-white pieces of glass to form a geometrical composition, stained in colours with geometrical, linear and Tuschinksy-style motifs, suspended from the metal ceiling-rose by eight cotton chords, fitted for electricity