NOS eyebrows, what year and WIW?

[68chevyfuelie]

Picked up a parts lot of stuff. The guy had a couple eyebrows and the center trim. Part numbers 3933855 and 3933856, center trim has no packaging left. I was told they were GMC. My 67-72 parts book does not list these numbers, although I found some info through google saying these are '67-68 Chevy.

Center trim looks brand new, but has one ding, and has been out of packaging for awhile I believe. I think it would polish up nice.

Whats this worth? Are all 3 pieces '67-68 Chevy?

Thanks!