MARJORIE MERRIWEATHER POST loved her home, Hillwood, in Northwest Washington. And she loved her small breakfast room, so much so that she had it dismantled and taken to Washington from her 54-room Fifth Avenue apartment. Here the table is set for lunch with friends–Russian imperial porcelain plates, stemware from the 1920s, silver pieces from her collection. The theme was inspired by Hillwood’s exhibit, “Cartier: Marjorie Merriweather Post’s Dazzling Gems”; the setting and the exhibit can be seen through December 31 (go to www.hillwoodmuseum.org).