Das Landeshaus in Danzig.
Unknown author<span style="display: none;">Unknown author</span>
published in 1886
"Die Gartenlaube", cropped from: <a href="//commons.wikimedia.org/wiki/File:Die_Gartenlaube_(1886)_313.jpg" title="File:Die Gartenlaube (1886) 313.jpg">File:Die Gartenlaube (1886) 313.jpg</a>