Sparkling white wine. Estd. 1964. Our Napa Valley Blanc de Blancs is sleek and elegant, yet richly complex. It never seeks the spotlight, but always seems to find it. Sterling is your sparkling. Always polished, never dull. Enjoy responsibly. sterlingvineyards.com. 12.0% alc. by Vol. 24 Vinted & bottled by Sterling Vineyards, Ceres, California.