WWII GERMAN AIR RAID SIREN

Air Raid Siren with a handle on the top which has a dual purpose, one, it helps to carry the unit, and two turning the handle closes an opening suppressing the sound, possibly to indicate (by oscillation) the type of raid i.e., bomb or gas. This unit judging by its condition may well have been manufactured after the War.
Although this Siren is German made, the sound that it reproduces is exactly the same sound as the British Sirens.

Your comments:

• the siren itself saw use in the world war 2,especially during the blitz in brittain from 1940 to 1941.it saved countless of life as it warned people to take shelter before the bomb was really dropped
  .......... nguyen dang quang, vietnam, 20th of May 2015
  
  
• I have an identical siren, rescued from a skip, having been cleared out of a cold war Local Government Emergency Centre (nuclear bunker). It had apparently been used by the Civil Defence Corps.
  .......... Nick Evans, Gloucestershire, 28th of April 2011
  
  

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