"They must have slipped this piece of paper underneath the regular files I sign, covered it with a layer of rubbing paper. This way, when I signed the document on top, they could quietly obtain my signature on the one underneath. However, although the rubbing produces identical handwriting, it cannot replicate the exact ink marks! They can forge the handwriting but not the ink, as the ink is a rare edition, only available to me and your father!"
The Old President's excited voice echoed in the hospital room.
Bao Gucheng's gaze gradually calmed down.
So it was the ink.
He remembered the type of ink his father often used, indeed a rare edition, because the master who once mixed it had long passed away, and no one else could replicate it perfectly.
However, this ink color was subtle, and when identifying handwriting, people would not specifically pay attention to the color of the ink, so this detail had been overlooked for so long.
