Frederik de Marselaer; twenty-seventh intendant of the canal of Brussels; Copper Medal. Obverse: coat of arms on crossed sword and staff of Mercury between inscription inside; wreath bound laurel and palm branch. Reverse: arm with clenched fist; protruding from windlass; standing on side of canal between inscription with pennant and lettering; Vaart van Brussel; Balthasar Laureys; Brussels; 1636; copper (metal); striking (metalworking); d 2.9 cm x w 59 gr