This is an example of a German Air Raid Siren, in every respect it is the same as the British version apart from being slightly smaller, the handle on the top 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.
Added:
11th Mar 2009
Subjects:
Design and Technology, History, Science
Key Stages:
Foundation, Key Stage 1, Key Stage 2, Key Stage 3, Key Stage 4, Key Stage 4+
Keywords:
WWII, Siren, Civil Defence, Dad's Army
Related Links:
EXIF data:FILE |
FileName | a0405.jpg |
FileDateTime | 0 |
FileSize | 647779 |
FileType | 2 |
MimeType | image/jpeg |
SectionsFound | ANY_TAG, IFD0, THUMBNAIL, EXIF, GPS |
COMPUTED |
html | width="1296" height="1936" |
Height | 1936 |
Width | 1296 |
IsColor | 1 |
ByteOrderMotorola | 0 |
ApertureFNumber | f/8.0 |
UserComment | |
UserCommentEncoding | ASCII |
Thumbnail.FileType | 2 |
Thumbnail.MimeType | image/jpeg |
IFD0 |
Make | NIKON CORPORATION |
Model | NIKON D200 |
XResolution | 300/1 |
YResolution | 300/1 |
ResolutionUnit | 2 |
Software | Ver.2.00 |
DateTime | 2008:07:08 10:21:57 |
YCbCrPositioning | 2 |
Exif_IFD_Pointer | 350 |
GPS_IFD_Pointer | 28656 |
CustomRendered | 0 |
ExposureMode | 1 |
WhiteBalance | 1 |
DigitalZoomRatio | 1/1 |
FocalLengthIn35mmFilm | 63 |
SceneCaptureType | 0 |
GainControl | 0 |
Contrast | 0 |
Saturation | 0 |
Sharpness | 0 |
SubjectDistanceRange | 0 |
THUMBNAIL |
Compression | 6 |
XResolution | 300/1 |
YResolution | 300/1 |
ResolutionUnit | 2 |
JPEGInterchangeFormat | 28780 |
JPEGInterchangeFormatLength | 9678 |
YCbCrPositioning | 2 |
EXIF |
ExposureTime | 10/1250 |
FNumber | 80/10 |
ExposureProgram | 1 |
ISOSpeedRatings | 200 |
ExifVersion | 0221 |
DateTimeOriginal | 2008:07:08 10:21:57 |
DateTimeDigitized | 2008:07:08 10:21:57 |
ComponentsConfiguration | |
CompressedBitsPerPixel | 2/1 |
ExposureBiasValue | 0/6 |
MaxApertureValue | 48/10 |
MeteringMode | 5 |
LightSource | 4 |
Flash | 0 |
FocalLength | 420/10 |
MakerNote | Nikon MM * 3 0210 È |