Source
Source: The Battle of Königgrätz – Austrian and Saxon artillery on the heights of Problus on the morning of July 3, 1866. Wood engraving (no date).
bpk-Bildagentur, image number 30013054. For rights inquiries, please contact Art Resource at requests@artres.com (North America) or bpk-Bildagentur at kontakt@bpk-bildagentur.de (for all other countries).