Most of the sirens I saw when I visited Greenland last summer looked like this, and the towns were well covered. In Narsaq, a town of about 3,000 people, I counted seven of these.
Those two-speed sirens discussed earlier were an old Italian design. Many were imported to Argentina and are still built today, using a relay to slowly alternate between slower and faster speeds for a wailing effect.
As was noted six years ago, the former SONGS sirens were built in California by a plant engineer. They were not made by Toshiba nor do they resemble Toshiba sirens, which are found only in Japan and have either three or six projectors.