Word: sentrons
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Dates: during 1964-1964
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Flint Librarian Ransom L. Richardson is convinced that the system is worth the expense-$6,740 a year for rental of Sentrons plus $4,500 for installation of equipment for four turnstiles. "Even if we just cut our losses in half," says Richardson, "we'll be ahead." The Grand Rapids library, which used to lose between $10,000 and $15,000 a year on stolen books, began slipping Trikilis' Sentron devices inside their books eight months ago, has not lost one of its treated volumes since. Says Grand Rapids Librarian Donald W. Kohlstedt: "The deterrent value...
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