It's well known that the STH-10 in Crescent City replaced the only know E57 in America (Which was previously replaced by a 2T22), but it seems there is another siren in Crescent City!
https://www.google.com/maps/@41.7513035 ... 312!8i6656
I'm not sure how anyone missed this but it is nowhere near the harbor office and is not marked on any of the California maps.