This is a super Rare Studebaker 1947-1952 convertible top hinge middle bow mounting bracket part 287571.  I am not positive but this may be only for 47-49 but not sure, please research for yourself to insure this is what you need.  These always break and this one is crack free.  

Check my other auctions as I'll be listing some other RARE Studebaker convertible top parts.  

See pictures to see what your getting and condition.