The signature pen is harder to fake than the signature with 3-color 3-nib pen

 The signature pen is harder to fake than the signature with 3-color 3-nib pen. and 3 colored lines overlap part of each other when blending curves, creating big and small strokes, very difficult to fake because no one can blend the curvature when rotating 3 nibs with the same width. the lines are irregular, dark and difficult to match. But at first, the 3 colors must be held in the correct direction

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