Otto FRIEDRICHS (1857-1943) historian of Louis XVII and Naundorff's cause. 51 L.A.S., 1893-1911, to Georges Montorgueil; over 150 pages in-8, in-4 or in-12. Important and very interesting correspondence on Louis XVII and Naundorff, the true Dauphin's escape from the Temple and the mock burial; Friedrichs' historical research and work, his finds and collection, his quarrel with the pretenders to the Throne, the progress of Naundorff's cause, the excavations at Sainte-Marguerite cemetery... Etc.