I think this is my second one correct albeit a near miss on this one.
I knew it wasn't an American made flying boat because I had just been through the list without any matches, interestingly it WAS a upgrade to a Curtis product that had been an earlier guess.
In the picture the guy who looks like he is fishing is most likely using a grappling hook to grab a buoy to hook up to or something similar.
I don't have any planes in mind floor is open to someone else who isn't a frequent Quiz Master.
Sparky