Source images IDS 21051 BCz, 244, p. 309-310, 294, p. 294 postscript (Latin rough draft autograph) 
Facsimile of the source from the collection of Muzeum Narodowe w Krakowie, Biblioteka Czartoryskich, 244, p. 309-310, 294; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.
