I tend to agree... after looking a little closer some of the mangled bits look like they were pressed between the speedo drive gears. Im hopibg it was a quick little event when it got caught and all the bitts basically just rode out yhe interim (who knows how long) in the bottom of the speedo housing. it would be hsrd for them to migrate into the rest ofvthe case i would think?If it's steel, looks like a mangled shim. Someone who had the case apart in the past lost a shim in the case and never found it.