Civilian protection. This is one type of air raid alarm siren which cries out in warning tones that can be heard for distances of several miles. In most cases sirens such as this one are being placed on roofs of firehouses
Summary
Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description
Tags
Date
01/01/1941
Contributors
Palmer, Alfred T., photographer
United States. Office for Emergency Management.
Location
Source
Library of Congress
Copyright info
Public Domain