Optigraph

• (a.) A telescope with a diagonal eyepiece, suspended vertically in gimbals by the object end beneath a fixed diagonal plane mirror. It is used for delineating landscapes, by means of a pencil at the eye end which leaves the delineation on paper.
Found on http://thinkexist.com/dictionary/meaning/optigraph/

Optigraph

Op'ti·graph noun [ Optic + -graph : confer French opticographe . See Optic , adjective ] A telescope with a diagonal eyepiece, suspended vertically in gimbals by the object end beneath a fixed diagonal plane mirror. It is used for delineating landsca...
Found on http://www.encyclo.co.uk/webster/O/27
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