The other Kennedy yacht is the "Manitou," which was a racing sail boat yacht without an enclosed bridge, and is the one you see with stanchion and rope/metal railings, stays for the mast, with an external ship's wheel and binnacle, the one with Kennedy at the wheel. This is the wheel of the "Manitou":
It is the Manitou which has the decking curvature and the kind of wood work that matches the photo with the bell. The "Honey Fitz" has essentially flat decking, as it has metal decking under the added wood.
Thanks for sharing your expertise.
Do you have a photo of that bell which shows that bell or one like it on a JFK boat? Not various pictures of the boat from different angles with similar wood but a picture of that bell on the JFK boat?
I'm willing to believe the same bells with the same engraving can be found on both boats but I have only found that bell with that engraving on the boat I posted.
And the other links I included with my original post also confirm that bell with that engraving is on that boat.
Here is the link to my original post.
As I said before I believe either someone made an honest mistake with their attribution of the bell or they're trolling.