Guys, if the near machine on floats is a "wide-cabin" G-2A or G-2A1, then it has metal blades. Can't really tell- might be a straight wooden blade G-2 (which is what it looks like to me).
The machine in the background is an anomaly - a real mix-and-match. It obviously has a Franklin engine and the D-1 cabin, but it's got the "straight" G-model tanks plus the aforementioned "rabbit ears" flap restraints (which are fittable on all 47 models, I suppose), not to mention a sync elevator. I'm guessing the operator built up that ship from a bunch of 47D and G parts he had lying around...a sort of "Super D-1."