help me date my raleigh
So I got this frame today, it's a Super Course, bronze, supposedly carlton built, it's 531, the Raleigh name is in thin cursive, BB shell is stamped with TT (?) and left dropout has 337721 on the outside of it. It looks like a late 60's, early 70's? Anyone with helpful information, links, etc, will be greatly appreciated.
Thanks.