That looks convincing to me, Bill. I'm not sure about the reversal of the photo. Most pictures of Ford Model As show the horn mounted under the left-hand headlamp, as in the puzzle photo. It does seem odd though that two of the cars are LHD, but the other is RHD.
When I started Autopuzzling, I became acutely aware of my lack of knowledge of American cars, and have tried to become better acquainted with the subject since then. It's still a bit outside my comfort zone, though.
Maybe you can help, Bill, as I'm still not quite sure about the Chrysler Models 65 and 75. Most of the 75s I have seen have a different style of radiator to the puzzle roadster, but not all - some do look like it. Were the two styles used on the 75, or are some photos just misidentified?
And I know I get obsessed with minor details, but where I have found sharp enough photos of Model 75s, they all seem to have only 20 louvres on the bonnet/hood sides, which again doesn't match the puzzle picture.
Maybe it's not such a good diagnostic feature though, as I have now found a picture of what claims to be a Model 65 which, unlike the others I have seen, does match the puzzle photos, in having 25 louvres set in a pressed-out panel with the more curved edges and corners. This one has a different design of bumper, though.
Honestly, spending my weekend counting bonnet louvres? I really should get out more!