Bidspirit auction | 4 pen drawings militaria portraits

4 pen drawings militaria portraits - 4 pen drawings Militaria Portraits, Frederick II, Bismarck, Hindenburg, Ludendorff, ”Erich Fischer 1924”, in passe-partout, reverse side labeled ”Wohltätigkeits-Auskunftei Dobil-Köln für ehem. Offiziere u. d. Hinterbliebenen...” (Charity Information Office Dobil-Cologne for former officers and their surviving dependents...), 1 handwritten note about the artist