The one on the 11 cab F30 I once owned in NZ was plain chrome as are all the others I have seen. Tony is correct they were over sprayed with green when the trucks were refurbished.
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Cheers
Cliff Hutchings
aka MrRoo S.I.R.
"and on the 8th day he made trucks so that man, made on the 7th day, had shelter when woman threw him out for the night"
MrRoo says "TRUCKS ROOLE"