Blanks of several F4U variants.
Color chart is on some of them, as you can see.
Original F4U-1 with the birdcage canopy.
XF4U-3; few of these were manufactured and primarily used as engine testbeds.
The F4U-4, the last Corsair to enter service in WWII.
F4U-5, an improved F4U-4. Incorporates 4x20mm cannons.