3 "Ficheiro:Madison_Civil_Defense_Siren_-_panoramio_(5).jpg".

Ficheiro:Madison Civil Defense Siren - panoramio (5).jpg

archive.org/web/20161103092708/http://www.panoramio.com/user/2184098?with_photo_id=130354700 operator: Panoramio described at URL: https://web.archive...

Ficheiro:Civil Defense Siren - panoramio.jpg

English operator: Panoramio described at URL: https://web.archive.org/web/20161028202240/http://www.panoramio.com/photo/106170996 determination method...

Ficheiro:Madison East High School Civil Defense Siren - panoramio.jpg

archive.org/web/20161031002030/http://www.panoramio.com/user/2184098?with_photo_id=112160275 operator: Panoramio described at URL: https://web.archive...

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