Very Rare and unusual 18K yellow gold life-like walnut pillbox by Cartier, of English origin circa 1950s. Very intricate and accurate representation of an actual walnut. Opens to smooth polished finish. Very rare due to the fact that it was made in 18K gold, when at the time similar pieces were mostly 9k or 14k gold. Hallmarks: Cartier London, JC, British 18K gold assay mark.