Source images IDS 19935 (Latin fair copy autograph, in secretary's hand, author's signature, 16th-century)
Facsimile of the source from the collection of Biblioteka Narodowa, BOZ, 2053, TG 17, No. 2076, f. 190-191; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.