The Collaborative International Dictionary
Dactyliography
Dactyliography \Dac*tyl`i*og"ra*phy\, n. [Gr. dakty`lios finger ring + -graphy.] (Fine Arts)
The art of writing or engraving upon gems.
In general, the literature or history of the art.
Wiktionary
dactyliography
n. The art of writing or engrave upon gems.