In post 102 I provided a link to the checklist for what Huggins & Scott called the Topps 1952 Super Set of 579, which contains 29 cards more then the PSA Registry Master set of 550. Most of the additional cards they include are really just recurring print defects.
One involves the Loes card, which it says can be found in black back with a border irregularity in the lower left front border. I have not found one. If anyone here has one can they please post it. In looking for it I did come across this one, also a black back. This defect is scarce but does recur in different sizes
