Thanks for the info, Sean.
Man, that photo you posted almost looks like a slaughterhouse pic. Godzilla ready to be bled and then cut into steaks and chops.
What a shame (but like so many cases) where costumes and props from flicks were not properly stored or cared for, because, like any new movie (which hasnt reached some status yet, financially, or as a hit with audiences), the items are sometimes carelessly stored on a shelf, in a box or, in this case, in the outdoor elements, only to be lost to them. The costumes/props are not seen as iconic or worthy of saving, at the time of a film's actual production.
And props are often cheaply made. They look good on film, but their construction is often made with lesser materials, like foam, lightweight wood, etc, but then finished to look like metal, marble, oak, etc.