Hand-drawn illustration of PEARL machine


Accession Number: 2016.16.2.2

Scope & Content: Line drawing made on a transparency sheet; clear image on black background shows an angled view (operator's side) of the PEARL (Plate Embossing Apparatus for Raised Lines) primary embossing machine, with a low-back office chair in foreground. Illustration appeared in the Report of Research and Development Activities, Fiscal 1983, Department of Educational Research, American Printing House for the Blind (APH). The PEARL machine was designed by Gary Davis, an APH mechanical engineer and designer, to emboss raised-line drawings on metal printing plates from which paper copies could be produced. Construction of the machine was completed in 1983.

Creator: Davis, Gary

Interview Date: / /

Collection: APH Archives / RG 12: Educational and Technical Research

Subjects: Machine design Machinery Printing plates Tactile graphics