Given all that has been said, and on a second (third) thought, i would start from square one ...
... In that a guy had a piece of croc hide and decided to make a cuirass with it; a mock one, as for purposes other than for combat. The iron sheet he used looks too thin to avoid bullet penetration; look at the foldings. On the other hand, the decorative rosettes were not original to the hide, or their beaten nails would not show up in the present interior.
It also looks as the iron shell was a piece of iron salvaged from previous purposes, as denounced by those vertical series of useless holes.
This would takes us to two options; a theatrical prop or, some native setup ... this for fun or symbolism purposes. I would chose the indigenous setup, simply because i wouldn't see a prop maker getting hold of such old and fragilized piece of skin for modern purposes; after a couple takes in action, all those scales would crack and fall apart.
I bet you guys find this a feeble approach; but just don't tie me to the whipping post
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