Opinion as to handwriting and signature, when relevant

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Full Text of the Document

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....person by whom it is supposed to be written or signed that it was or was not written or signed by that person, is a relevant fact. Explanation.--A person is said to be acquainted with the handwriting of another person when he has seen that person write, or when he has received documents purporting to be written by that person in answer to documents written by himself or under his authority and ad....