Conductor of the Sihltal Zürich Uetliberg railway.
Christof Sonderegger
CC BY-SA 4.0
ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Sonderegger, Christof / Com_L24-0228-0003-0003 / CC BY-SA 4.0 / <a rel="nofollow" class="external free" href="https://doi.org/10.3932/ethz-a-001031719">http://doi.org/10.3932/ethz-a-001031719</a>