SBB CFF FFS "sous-chef" at Zürich HB railway station.
Heinz Baumann
CC BY-SA 4.0
ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Baumann, Heinz / Com_Ex-BA02-0007-0025 / CC BY-SA 4.0 / <a rel="nofollow" class="external free" href="https://doi.org/10.3932/ethz-a-001130120">http://doi.org/10.3932/ethz-a-001130120</a>