Democratic Sentinel, Volume 16, Number 5, Rensselaer, Jasper County, 19 February 1892 — Designs on Glass. [ARTICLE]

Designs on Glass.

So-called diamond ink for writing on glass is ?. compound of fluoric acid and barium; the latter has no effect, it being simply a white powder to give body to the acid. The ink can be used with a rubber hand-stamp, and it should be allowed to remain fifteen minutes, when the barium will brush off, leaving the design on the glass.