One other thing, I think we have to always distinguish the difference between the Conn Co. ownership of Ludwig era, and the original Ludwig & Ludwig. Then after Ludwig sold to Conn, the re-emergance of the Ludwig & Ludwig Co. Maybe not so much a re-emergance, but more of a re-emphasis.
It's very possible that when folks are describing these older drums that they confuse the era.
Thanks a lot for your imput everybody!