The ink library at the lab contains samples of pen, marker and printer inks dating back more than 85 years.
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In a cabinet inside a modest laboratory in downtown Washington are rows and rows of ink samples in plastic squeeze bottles and small glass jars.The ink library at the lab contains more than 15,000 samples of pen, marker and printer inks dating back more than 85 years. The collection is the result of one man, Antonio Cantu, a renowned investigator and former chief chemist at the Secret Service who started picking up samples in the '60s. Cantu died unexpectedly last year, and the Secret Service recently dedicated the lab in his honor.The lab is one of several under the Secret Service's questioned documents branch, which is also responsible for handwriting analysis and document authentication, and handles as many as 500 cases a year. The branch works on Secret Service investigations, plus counterfeiting probes and fraud and helps law enforcement agencies around the nation and worldwide.Cantu and his team analyzed the samples and helped crack the case.Both the ink library and book collection were named for Cantu.
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