Hello...in case there is a contingent of collectors that know such things, I have a need for very good condition round tail lights to replace deteriorated and "somebody put a higher watt bulb or something" so it bulges.  I am told by the rv shop that the corrosion on all of these are pretty bad and might not last much longer.

I do have the only new replacements, the rectangular LED ones.  I may be forced to do that, but I do like it being original at least from the outside.