Evening Republican, Volume 21, Number 222, Rensselaer, Jasper County, 4 October 1917 — Carbon Ink Best at Present. [ARTICLE]

Carbon Ink Best at Present.

If an ink could be produced possessing the desirable properties of perfect fluidity and being non-depositing, and at the same time Incapable of being decolorized by oxidizing or reducing agents, there, wonl<| be good reason to believe that the writing done by such an ink would be practically permanent. In the meantime, when writing Is of an important nature and is desired to endure, some form of carbon ink appears to be the only trustworthy prepara tion.-“-Exchange.