Part number for 270 SL rear tail light chrome surround.

[rutger kohler]

Hi, there is someone in NZ selling a brand new rear taillight chrome surround.  I have asked if it is a genuine MB part and the seller has said the number 2235R is shown on the inside of the part.  Can someone confirm that this is the right part plse? I also seem to remember some discussion about the length of the studs that are embedded in the die casting being different for early and later W113 models?