Q: Is the (F-Skirt) [Vertical bar] (R-Skirt) [Vertical bar] insulator on the left a {threaded to base} variant?

A: YES

Q: Is the (F-Skirt) [Diamond] insulator on the right a {3 1/2'' tall; modern style}?

A: YES

Q: And what is the colour of the one in the middle?

A: Mixed responses - I'm going for Dark Olive Green