Set of Four Antique Ink Drawings of Architectural Details in Ravenna and IstanbulI purchased these drawings from a dealer in Romania and was not quite certain what to expect, but they are absolutely gorgeous very finely done, and quite striking, especially all together, so I'm listing them as a set and think I would would frame them up together more or less just a shown. Clockwise from upper left, they depict details from 1)a column in the Hagia Sofia mosque, Constantinople (Istanbul); 2) an unnamed Byzantine sculpture; 3) a