Reposting something that I saved from an older post here:
I know this is an old thread... But i thought i would clear up some of the measurements. Wrote them down a long time ago when we had the genuine ones pass through my work as im a specialist packer by trade. These were for the first avenger movie. A couple of normal ones. Two plain silver ones and two battle damaged ones.
I recently also had the stunt rubber shield come in so got to check the measurements on that too. Thought id share with you guys.
The genuine metal shields are definitely alloy. It was 26". Approximately 3.5" in depth. Outer ring (red)was 3 1/4". Next one in (silver) was 2 3/4". Followed by the last ring (red) that was 2 3/4". The centre ring was 9".
The finish was not painted. It was obviously spun metal. It was definitely anodised. There was no mask lines. To me it had been dipped and fully anodised red.. Then the silver. Stripe lathed off. The centre was not 1 piece. The blue segments looked separate from the star. The blue pieces were also anodised. Then i guess they were all stuck into place.
Finally the inside had been painted a silver colour.
As for the rubber stunt shield.
Was 24". Again approx 3.5" deep. Outer stripe (red) was 2 3/4". Second one in (silver) was 2 1/2" and the inner red was 2 1/2". Centre circle was 9"