I experimented on a blue sharpie-signed 1975 Gary Matthews card that I got TTM last century. The dry erase marker definitely and immediately 'erased' the autograph, but in the end the yellow from that marker has basically taken the place of the original problem ink...so I'm back to where I started. I then soaked the Matthews to see if the new yellow ink could be disappeared, but no dice. Bummer.
If somehow the dry erase marker was see-through colorless, this would work, but alas.
In the end, though, I think there could be something here. The way the dry erase marker activated that very old sharpie signature was really impressive. Not a drop of the ink remained. Perhaps there's a different type of marker that's more water-based and could be quickly wiped away (as long as the card has some of its original gloss)?
Anyone have further ideas?
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