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Image courtesy of Adam Pollak

MODERN VOICE OF Independence! 

CHRYSLER AIR RAID SIREN sounds loudest warning you've ever heard! 

First announcement that Americans would willingly fight for freedom came with the ringing of the Liberty Bell atop Independence Hall, 176 years ago.

Today, as more and more cities and towns observe Civil Defense precautions, American determination to defend that freedom sounds forth regularly in the mighty voice of Chrysler Air Raid Sirens. 

Thanks to the 180 horsepower and unusual operating characteristics of the great new Chrysler Industrial V-8 Engine, sound engineers now have made available the loudest and most practical siren ever devised for civil defense purposes.

At 100 feet from its throat, the Chrysler Siren delivers 138 decibels of sound.  Under normal conditions, its shrill voice carries four miles, thus making it possible to warn all persons in an approximate circular area, eight miles in diameter.  Because of the great power of Chrysler Sirens, complete coverage of any desired area can be accomplished with fewer sirens, and at lower cost.

By ingenious utilities' circuits, defense organizations can operate a system of Chrysler Sirens by remote control from a central control station.  When desired, the sirens can also be operated manually at the site.

Since each Chrysler Siren is individually powered, it operates independently of central power systems, an obvious advantage in case of attack.  For mobility, Chrysler sirens can be mounted on trucks or boats.

To secure complete information, specifications and availability for your city, write Siren Layout Service, Industrial Engine Division, Chrysler Corporation, Trenton, Michigan. 

Civil Defense is a common need, shared by all.  Join the Civil Defense group in your area. 

CHRYSLER AIR RAID SIREN