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Watermarks frequently establish the authenticity or spuriousness of the questioned document(s), the genuineness of which may depend on the date of the watermark or more importantly the date mark on the watermark.The following case history demonstrates how a date mark on a watermark alone can expose a fraudulent document. in Spartanburg, South Carolina alleging that “page 3″ of a Will was fraudulent and was not prepared at the same times page 1, 2, and 4 (the signature page) was executed. An attorney’s secretary testified she had prepared the Will, witnessed each page and personally witnessed the decedent sign page 3 and 4 at the same time.These ink dating methods include the comparison of the examined ink to a known library of standards, commonly called the library approach, the detection of chemical date tags placed in the ink purposefully by the manufacturer, commonly called the date tag method, and also the determination of the type of ink writing instrument used.The determination of the type of writing instrument is probably the oldest method of ink dating.Email is an easier way to meet people because there is less stress placed on an encounter.A person can say what they want, how they want, and not have to worry about it being taken the wrong way. These are often very tricky questions to answer and frequently arise in judicial contexts.The UPV/EHU's research team --comprising the professor of Analytical Chemistry Rosa María Alonso, Dr Itxaso San Román of the Farmartem group of the Department of Analytical Chemistry, and Dr Luis Bartolomé of the Central Analysis Service of Bizkaia (SGIker)-- has developed the Datink method that allows the period of time the ink may have remained on the paper to be determined and its age to be ascertained.

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Technically the page 3 signature was not necessary for the Will.The age or common origin of the document(s) may be determined through typewriting, printing, handwriting or even ink analysis; however, many times the problem may be quickly solved if a watermark is noted on the documents(s).If there is a date mark on the watermark, the case could move even more quickly.This ink dating method primarily involves microscopic examinations and can also incorporate some basic chemical solubility testing.Some examinations can be performed on fountain pens to determine type of nib, type of ink and the first date of introduction of each of these.The problems Determining the age of a document to find out whether it is authentic is a task influenced by the type of paper on which it has been written, the pressure of the stroke -the amount of ink deposited when the writing was done- or even the technique used.

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