Besides the point that the card in the topic is obviously authentic...
common sense would tell you that its 100% impossible for a card as thick as a R319 or R320 to have so called "Bleed Through"
Even if the card was made out of a single layer of tissue or typing paper it would be heavily distorted if the ink bleed through, plus it would have to be "Magic Ink" to make it through the many thin layers of paper that make up the thick stock of these Goudey cards and still be sharp and easily readable.
All of these are "Wet Ink Transfers" made when the printers stacked these sheets while printing them and with some weight from the stack the slightly tacky ink from the front transfers to the back (or front sometimes too).
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