Early maritime fog/signal horn

This is a very old horn i have in my collection of old stuff, I cannot find anything like it anywhere, the mechanism is wooden and there are 3 leather bellows, has a foot pedal to depress to make this work, has 3 metal tubes on top where some small hoses used to be, there are off centered screws, which suggests to me 1850s era, possibly used on a steam ship or paddle wheel boat ?? its still a mystery, there were never any sides on this, there are no screw holes indiccating it had sides

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