It is said that this is Princess Jeongmyeong calligraphy currently house in the Gansong Art Museum
The character "華" & "政" is 73 cm in length
Art Historians said that to execute this large bold character of such size in a single stroke of brush stroke without a flicker of the brush is demanding for a man likewise it is done by Princess Jeongmyeong, a demure & frail woman. Princess Jeongmyeong execute her brush stroke with structure (결구, 結構) & her force/power of strokes (calligraphy term 필력,筆力) & its sharpness of the strokes (운필, 運筆) that is so innate with confidence in her execution of her brush strokes
Song Si Yeol a famous & fellow calligrapher wrote an epitaph for Princess Jeongmyeong when he view her calligraphy