VT10 551i. The VT10 units were the first airconditioned trains in
Germany, built of riveted aluminium alloy. They followed Franz
Kruckenberg's pre-war experiments (and Kruckenberg developed the
single-axle bogies of the daytime train VT10 501, of which nothing
remains). <p> N&uuml;rnberg-Stein,
2007-02-03, <a href="mailto:tbk@uncia.de">tobias b k&ouml;hler</a>