Guarding of the railway viaduct on the Zurich - Schaffhausen line
<div class="fn value">
Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
between 1914 and 1918 <div style="display: none;">date QS:P571,+1914-00-00T00:00:00Z/8,P1319,+1914-00-00T00:00:00Z/9,P1326,+1918-00-00T00:00:00Z/9</div>
Swiss Federal Archives