I think most magnesium American Torq Thrusts were un-marked, unlike the aluminum versions. Crestlines typically are marked "Mark II" in the lug nut web area. Never seen magnesium Crestlines, doesn't mean they don't exist of course.
Talk to scott 327-365hp hes very knowledgeable about wheels as I am sure a few are. But he knows his stuff hes hoarding a bunch lol
Yup, they are going to be American Racing. The pics I saw when I googled them earlier, looked like they had a different shaped spoke. After spending more time on google images I'm confident they are American Racing. Wishing they were 15x4's, but I wouldn't be that lucky. Lol Thanks for all your help guys. .