Hasselblad 50 2x CB6-1 Scratches and haze present, sold as junk

This is a Hasselblad filter, 2x CB6 -1.
Made in Germany.
I'm embarrassed to admit, but I don't understand the meaning of Hasselblad filter symbols or numbers.
There are scuffs and haziness on the lens surface, but I believe it's at a level that won't affect shooting.
However, I understand that some people might be concerned, so I am listing this as junk.