EDITION 6 COURVOISIER ERTE COLLECTION - L'ESPRIT DU COGNAC: 750 ML Courvoisier in original presentation box. The bottles of this Erté Collection were designed by Russian deco-artist Erté showing the 7 steps of cognac making and contain a blend of precious Grande Champagne cognacs. The legendary cognac house commissioned the seven-bottle set from the Russian-born artist for its extraordinary blend of precious Grande Champagne cognacs, some dating back to 1892.