[PiratesWS1979]

Originally Posted by WWG

50/50 centering is not a requirement for PSA GEM-MT 10.

GEM-MT 10
Gem Mint
The image must be centered on the card within a tolerance not to exceed approximately 55/45 to 60/40 percent on the front, and 75/25 percent on the reverse.

Plus there was more tolerance during early grading.