POLAREX UNITRON Filters Made from stainless steel Did you know that? Sunglasses & Moonglass Filter

POLAREX UNITRON Filters Made from stainless steel Did you know that? glasses & Moonglass sun filter
was looking at my sun filters today and by chance I saw these Sun Filters
sun filter is the same but different ?
My question is .... Is this the last production model Sunglasses Filter.
My question is .... (( 0.01 )) Which color goes in it.
My question is .... (( M 1% )) have two of which one is good

Thank you :) look forward to your response.

see my Collection OF Polarex-Unitron Models from BIG to SMALL telescope,
I DO 100% by HAND LIVE STREAM TELESCOPE ON THIS SITE.
and real Eyepieces from 1960-1970’s
Thanks :) don't forget to click the bell button.

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