Science: Twinwriting

For centuries the juridical systems of the civilized world have assumed that the natural handwriting of no two persons is the same. In most commercial transactions a signature is considered as good as a face or a fingerprint. Even the most skilful forgers find it next to impossible to perform in public. Thus successful forgeries of travelers' checks, which must be countersigned under scrutiny, are almost unknown.

Students of handwriting as well as the courts have accepted this long-standing assumption. Robert Saudek, London graphologist, set out to uncover exceptions.* In the March issue...

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