The mechanical alarm clock of the brand Kaiser from the 1930s was a mass-produced article and predominantly used in private households. It is now part...

The fire department bell is a component of a two-axled fire engine from the end of the 19th century. It was used to signal the right of way acoustically...

TThe tone sequence siren (German: Martinshorn) is a component of the fire engine/water tanker Magirus F Mercur 125, built in 1961. The vehicle was originally...

The sound of alarm bell on the icebreaker “Kuna”. The recording was realized on board of the museum and training ship “Kuna” moored in the river...

The sound of siren on the icebreaker “Kuna”. The recording was realized on board of the museum and training ship “Kuna” moored in the river port...

The mine telephone made by the company Funke & Huster GmbH has been installed in the shaft-hall of the LWL-Industrial Museum Zollern Colliery since 1990....

The tone sequence siren (German: Martinshorn) from around the year 2010 is a component from a patrol car of the city of Essen police department. In combination...

The tone sequence siren (German: Martinshorn) from around the year 2000 is a component from an unmarked police car of the city of Essen police department....

The tone sequence siren (German: Martinshorn) from around the year 2010 is a component from an unmarked police car of the city of Essen police department....

The tone sequence siren (German: Martinshorn) from around the year 2010 is a component from an unmarked police car of the city of Essen police department....

Before this police whistle from the 1980s was included in the historical collection of the Essen police, it had long been an integral part of the police...

Funke & Huster's signal bell was used in the Ewald Colliery in Herten (Germany, North Rhine-Westphalia) in the 1980s. Since 1990 it has been located...