In engraving, a counterproof is a print taken off from another just printed, which, by being passed through the press, gives a copy in reverse, and of course in the same position as that of the plate from which the first was printed, the object being to enable the engraver to inspect the state of the plate.
- This article incorporates text from a publication now in the public domain: Porter, Noah, ed. (1913). "Webster's entry needed". Webster's Dictionary. Springfield, Massachusetts: C. & G. Merriam Co.
- "Counterproof Archived 2007-08-07 at the Wayback Machine.". Women's Work: Printing Techniques. Linda Hall Library of Science, Engineering & Technology. 2005. Retrieved 2007-05-10.
- This article incorporates text from a publication now in the public domain: Chambers, Ephraim, ed. (1728). "article name needed". Cyclopædia, or an Universal Dictionary of Arts and Sciences (first ed.). James and John Knapton, et al.
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