This is an unusual Macao metal chess set. Usually those sets are ivory, this one is metal. One site painted Green the other white-ivory. Very ornate. The royal pieces, bishops and pawns carved with human heads, the European king and queen portrayed as Carlos I of Portugal and Marie Amelia, versus orientals. Knights as horses heads, rooks as turrets with sentry huts and flags, all on baluster knopped stems carved with floral ornament and stiff-leaf bands.