Special recording - Old WW2 air raid siren - Alarmierung WK2 Sirene

This is a curious video of an “old WW2 air raid siren“ from times of 2nd war. You can see and hear a monthly siren-test of an old electro-mechanical “Siemens-siren“ constructed in Germany many years ago. views achieved on 09-11-2011 views achieved on 10-24-2011 views achieved on 11-26-2011 views achieved on 03-04-2012