Ink dating science

Documents that don’t contain visible identifiable marks may contain valuable impression evidence if they were underneath other documents when the writing was performed.

In digital documents, evidence could even be culled from the metadata of electronic signature files, providing information such as who the author is and when the document was written.

Because of the small volume necessary for analysis, the remaining solution could be further processed using current law enforcement procedures for confirmation.

Determining ink sources used on a variety of documents is a key priority for forensic document examiners.

The information on this website will, however, usually produce a reliable manufacturing date range for a majority of American utilitarian bottles manufactured from the early 1800s to the mid-20th century.

Using physical, manufacturing related diagnostic features, most utilitarian bottles can usually only be accurately placed within a date range of 10-15 years (i.e., 1870-1880 or 1885) . Like many industries making the leap from manual craftsman production to industrialization and automation, technological advances in bottle manufacturing were not immediately accepted by glass manufacturers or their workers.

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