A very good 1966, yet not top flight, the Cos d'Estournel is medium to dark ruby, with some browning. It has very good concentration in the somewhat lean, austere character of the vintage, and plenty of tannin in the finish. Although it does not yet seem to be mature, I would drink it over the near term before the fruit begins to fade. Anticipated maturity: Now. Last tasted, 10/84.