Papyrograph \Pa*pyr"o*graph\, n. [Papyrus + -graph.]
An apparatus for multiplying writings, drawings, etc., in
which a paper stencil, formed by writing or drawing with
corrosive ink, is used. The word is also used of other means
of multiplying copies of writings, drawings, etc. See
{Copygraph}, {Hectograph}, {Manifold}. [Obsolescent]
[1913 Webster +PJC]