Spirit Duplicator

Spirit Duplicator ...

-Ditto

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Spirit Masters

"This machine printed from a "master" created in the same manner in which hectographic master sheets for spirit duplicators were made, but considerably before their introduction" (Rhodes and Streeter 109).

Relation to Other Copying Processes -Mimeograph

Costs

Educational Settings

Notion of Spirit

Xerox

Works Cited

Curwen, Harold. Processes of Graphic Reproduction in Printing. London: Faber and Faber, 1963.

Doss, Milburn P. (Ed). Information Processing Equipment. New York: Reinhold Publishing Corporation, 1955.

Fisher, Harrison M. Today's Business Machines. Chicago: American Technical Society, 1959

Gardiner, A. W. Typewriting and Office Duplicating Processes. New York: Focal Press, 1968.

Rhodes, Barbara J. and Streeter, William W. Before Photocopying: The Art and History of Mechanical Copying, 1780-1938: A book in two parts. New Castle and Northampton: Oak Knoll Press and Heraldry Bindery, 1999.

Schwartz, Hillel. The Culture of the Copy: Striking Likenesses, Unreasonable Facsimiles. New York: Zone Books, 1996.