John, all the ones i have physically come across have been as Dave described, although i have seen some in online pics that appear to have the cadium coloured look as you describe. Bob, i tried to remove one on a spare i have to see how easily they would come off so i could polish my the ones on my set and i ended up cracking the lense.I think they would/should come off, but risky.
David
http://FirstGenFirebird.org/show/closeup.mv?CarID=571 If i don't get this car back on the road soon i'm gonna go postal! On a quest for FGF knowledge 1968 Pontiac Firebird Convertible 1969 Oldsmobile Cutlass "S" Convertible *Sold*