@TDE Not hub doubling and not a doubled die. This is die deterioration doubling from a worn die. To any others, these pics will enlarge.
It is a good example of machine or die deterioration doubling (DDD), so I'd hang on to it as an example of such. While you've been a member for 3 years, you may not have familiarized yourself with Wexler's site, so maybe head over that way and read up on Worthless Doubling. http://doubleddie.com/144801.html
