Use of the Projectina Universal Comparison Projector in Comparing Typewriting, Photocopies, and Computer-Printed and Mechanically Produced Documents

    Volume 25, Issue 2 (April 1980)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 1 April 1980

    Page Count: 8


    Winchester, JM
    Document examiner, Florida Department of Law Enforcement, Tallahassee, Fla.

    (Received 25 July 1979; accepted 21 September 1979)

    Abstract

    The Projectina universal comparison projector was used to compare and examine surface detail on typewritten documents, high-speed computer printouts, photocopies, fracture matches, and mechanically produced documents. The observations made by using the side-by-side prism or the superimposition mode optical block were photographically recorded. The Projectina magnifies and projects two items so that similarities or differences can be determined.


    Paper ID: JFS12143J

    DOI: 10.1520/JFS12143J

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    Author
    Title Use of the Projectina Universal Comparison Projector in Comparing Typewriting, Photocopies, and Computer-Printed and Mechanically Produced Documents
    Symposium , 0000-00-00
    Committee E30