SZU (Sihltal-Zürich-Uetliberg) Be 556 521-3 at track 2. This train has the most common configuration of the Uetliberg line (Be 556 + middle car + Be 556), it is not a regular S10, but an extra train for a booked travel group.

Zürich HB, 2005-12-09

tobias b köhler