Engraving was chosen for its replaceability and social, communal process

Evidence

The artists decided to use engraving not only because prints are replaceable and thus not vulnerable to total destruction but also because of the social aspect of engraving. Because of the shelling, the artists were often forced to stay overnight or for several nights at a time in their studio (an old evangelical church). In their catalogue comments the artists trace the line of teachers and traditions that religious nationalists wished to destroy. — Michael A. Sells, The Bridge Betrayed, 389