title page of a Budapest guide for the III. Wanderversammlung für Materialprüfung
designer unknown (book from 1901), Scanː <a href="//commons.wikimedia.org/w/index.php?title=User:Heied&amp;action=edit&amp;redlink=1" class="new" title="User:Heied (page does not exist)">Heied</a>
own collection