I saw bits of an episode (old re-run) of dream car garage a little while ago, the TV was on in the background and i heard them talk about re-chroming a persons dash bezels, one that wasn't available as a reproduction.
as i recall they said very few people if anyone at all will redo them now. Even though there are places that chrome plastic but they only deal in large volume multiples of a particular item. they had a bezel from some car they were working on or restoring, i can't remember what it was now, wasn't a ford. they said they had convinced the owner or company to let them put a few things through for them and then showed the process.
the items are all placed on custom made racks to fit in all their machines. the plastic went through a couple or preparation steps and then got coated in clear, then go into a huge decompression looking vessel , the racks fit in perfectly making use of all available space. the large door is closed like some sort of submarine door and the vacuum or decompression begins, the racks are being rotated while they are in there. on the end of the racks they have tiny little aluminium/aluminum bars held in special holder, this is what you see, its not actually chrome they use. the bars (not many at all 4 maybe 6 ) were very small by the looks smaller than your little finger, possibly two bars might nearly make about the same size. i thought it amazing just how little material is used to coat the hundreds of items they were doing. it must indicate the coating on the plastic or bezels is extremely thin. after they are coated in the aluminium they come out looking like shiny chrome, then they are coated in another coat of clear and thats the end of the chroming process as they showed it. that was also all of the process they showed, they didn't show the camera black painting.
perhaps the ones mentioned earlier from the seventies or later getting the crazing or whatever once they have been installed- in the light. is because the final clear coat they used back then wasn't very very UV resistant.
i wonder if the process for producing chrome dash bezels was (basically) the same in the mid sixties. possibly i think it was different.