Reference works on German history

Lot 1013 limit € 20

2 editions in 8 volumes, 1 x Heinrich von Treitschke "German History in the Nineteenth Century", edition in 5 volumes, name and subject index by Georg Dittrich, Leipzig: Hendel Verlag, 1927, orig. Whole linen (insignificantly stained) as well as 1 x Heinrich von Sybel "The establishment of the German Reich by Wilhelm I.", primarily based on the Prussian state acts, edition in three volumes, Meersburg and Leipzig: Hendel Verlag, 1930, orig. Full linen, signs of age and wear