Fog signal Horn, 1 blast every 15 seconds, If you can check this and it matches then is the Point Judith lighthouse Horn. This is the correct way to identify a Fog Signal Horn what ever you hear one, or two if there is another one. But will be diferente time blast and so, it will be a diferent Light House Horn. In 1871, ship captains asked that Point Judith's fog signal be changed from a horn to whistle. This change distinguished the Point Judith light from the Beavertail Lighthouse, which used a siren to announce fog. A whistle could also be heard more distinctly over the sounds of the surf in the area. Point Judith Light was automated in 1954, and was listed on the National Register of Historic Places in 1988.
Very possibly
There's a good chance it was.
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