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Other changes have involved the placement and configuration of the fog horn.

From the Sound came the soft, low song of fog horns.

Pier 17 also has the last remaining original fog horn.

The old light, fog horn and radiobeacon were turned off.

That tower, now fitted with a fog horn, is still in use.

If needed, a fog horn may be sounded every 60 seconds.

The tower, completed on January 1, 1902, also had a fog horn.

They used a cannon as the fog horn and installed it in 1719.

In 1918, the station is also equipped with a fog horn.

The bell was replaced with a fog horn in 1969.