What are these seats out of?

[carlisle1926]

I found these three seats and I am curious as to what they might have been out of. All three seats are obviously missing parts.

[Project Warbird]

C-46 Commando pilot and copilot seats.

[carlisle1926]

I looked up what the seats to a C46 would look like. They are a match. The only thing that I see as weird, is how high the blue seat is from the ground. I'm over 6ft and my feet hardly touch the ground if I sit in the chair.