Source images IDS 19681 BCz, 244, p. 33-34, p. 34 (German rough draft autograph)
Facsimile of the source from the collection of Muzeum Narodowe w Krakowie, Biblioteka Czartoryskich, 244, p. 33-34; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.