Model # 855-S lense type D the two color codes are amber=ATL and clear=CTP. The orange/amber one is translucent and color code A could be subsituted which is nylon vs Lexan of the ATL version. The milky white one appears to be the transparent one CTP which is called clear in the catalog, the version being sold by everyone else is the translucent white WTL .
To be honest, it doesn’t matter if the part number and manufacturer is public knowledge since being able to purchase these from the supplier requires a large minimal order, much like the cranks knobs. That’s why Exoray tried to get a run started before he disappeared and that’s why the individuals who originally determined the manufacturers went to AJ since he had the capital and customer base to make purchasing these in large quantities from the manufacturer viable. Same reason the crank knob is happening right now. Same reason there are other large things of this nature constantly being worked on by individuals to supply the community with these real, accurate parts.
They weren’t “missed.” There were samples available of what the company currently makes for their options, and what AJ purchased is as close as you can get.
You’ve obviously never tried to get AJ to update something in the Wiki. He’s the only one that can create or rename pages and getting his attention and explaining what needs doing is a pain in the ass.