A wheelset of the "Schwebebahn" (monorail funicular) in Dresden, together
with the mechanism that actuates the emergency rail brake if the cable
breaks. The wheel has two flanges and rolls on a wedge-shaped rail.
Verkehrsmuseum Dresden, 2001-04-27.
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photo: <a href="mailto:tbk@uncia.de">tobias b köhler</a>