Accession Number: 2012.12.1
Subtitle: An Improved Tactile Graphics Production System, Final Report
Summary/Description: Photocopy of a typewritten APH project report about the development, specifications, and legibility testing of the PEARL (Plate Embossing Apparatus for Raised Lines) system, which was designed for embossing a variety of raised lines and symbols on metal embossing (printing) plates. Includes 2 illustrations: PEARL (primary embossing machine), and PEARL companion machine.
Author: Barth, John
Collection: APH Archives / RG 18: Maintenance
Publisher: American Printing House for the Blind
Publisher Place: Louisville, KY
Publish Date: 1984
Subjects: Machine design Tactile graphics
Physical Description: 23 p. : ill. ; 11 x 8.5 in.
