From the Reference in-library use only
v. 2. Hessen. Rheinland-Pfalz (The Palatinate)
v. 4. Saarland. Alsace-Lorraine, Switzerland
v. 5. Schleswig-Holstein. Hamburg. Bremen
v. 7. Nordrhein-Westfalen (Northrhine-Westphalia
v. 8. Brandenburg. East Prussia. West Prussia. Pommerania. Posen
v. 9. Saxony/Sachsen, Kingdom, Province. Thuringen/Thuringia. Nine duchies
v. 10. Hannover. Niedersachsen/Lower Saxony. Braunschweig/Brunswick. Schaumburg-Lippe. Oldenburg.