4 books in total, 1 x 2 volumes "Selected works of Frederick the Great", 1st volume "Historical and military writings letters", 2nd volume "Political and philosophical writings poems", ed. by Gustav Berthold Bolz, 1 x Max Hein "Frederick the Great - A picture of his life and work", richly illustrated and 1 x "Conversations of Frederick the Great", ed. by Frederick V. Oppeln - Bronnikowski and Gustav Berthold Bolz, each Berlin: Reimar Hobbing, oJ (probably around 1916 / 20), each blue half leather, size 8°, signs of age and wear (including 1 x endpaper with old handwritten dedication)
