Uh oh. I see the a/c I intended to build had a -1A canopy. That means I'll have to make another choice as I don't want to put a -1A canopy on the model. Or maybe I'll go on and use the frameless one. Could be that at some point that a/c had one installed. Thanks for the photo Martin.
There are several things to look out for when building a -1D Corsair. They include what type canopy (some early -1D's used the -1A canopy), rocket stubs or no rocket stubs (appears early -1D's didn't have 'em), and the cutout step on the right inboard flap. A great reference is Dana Bell's two books on the Corsairs.