While I haven’t seen the situation on this particular card I have seen it on many different issues across many different card companies - starting as early as the T206 issue. If I had to guess, I would venture that this was caused by sun fading. Other possibilities are weak application of ink or a missing run of the ink color or chemical treatment (which does not appear to be the case here)
Last edited by scottglevy; 08-06-2021 at 08:00 PM.
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