An exhibition showcasing a collection of historic designs by legendary Parisian haute couture house Madame Gres opens in Berlin on Friday. Twenty-five outfits owned by Berlin’s Museum of Applied Arts, or KGM, are being shown in the city’s Kulturforum building as part of an exhibition named Many Shades of Gres until Oct. 11. It’s one of the largest collections of Madame Gres’ work outside of Paris. Madame Alix Gres was one of Paris’ most-celebrated couturières last century. She was known for her signature, sculptural draping and innovative asymmetrical gowns and designed for French cinema. Madame Gres dressed the likes of Princess Grace of Monaco, Greta Grabo, Marlene Dietrich and Jacqueline Kennedy. The designer, who worked primarily in haute couture , died in 1993 and much of her company’s archive was auctioned off.   Berlin’s KGM obtained the Gres silhouettes from various sources, Katrin Lindemann, the museum’s curator for fashion and textiles, told WWD.…