Hello!
The question arises — how to restore at least some of the former shine to plastic chrome parts.
They were in such condition

Многолетней налет — Toyota Mark II (30/40)
Years of buildup

Фото в бортжурнале Toyota Mark II (30/40)

In the end, after trying all available polishing materials, including for chrome, I found an internet method: polishing with chocolate foil! Decided to give it a try. I was satisfied with the result, and it takes very little time without scratching anything.

Процесс — Toyota Mark II (30/40)
The process

Фото в бортжурнале Toyota Mark II (30/40)

Фото в бортжурнале Toyota Mark II (30/40)

For comparison (just in case, top is "before", bottom is "after")))

Фото в бортжурнале Toyota Mark II (30/40)

Фото в бортжурнале Toyota Mark II (30/40)

After this, to reinforce the result, I polished with some chrome polish and put the "glasses" on the shelf to wait for their hour.

Фото в бортжурнале Toyota Mark II (30/40)

Фото в бортжурнале Toyota Mark II (30/40)

Thank you for your attention!