 Steamboats
can´t be imagined without a steam whistle. On the river Elbe they were
first invented by the "Allgemeine Strom-Polizeiordnung für die
Schiffahrt und Flößerei auf der Elbe" of january, 8 1894, a law
which ordered that every steamboat should have a steam whistle for
signaling. The steam whistle replaced the bell signal, which was regarded
as non sufficient anymore because of the increasing travel on the river.The
photo shows the whistle of the PD Pirna.
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