Graphic Chemical Litho Ink
Manufactured by Graphical Chemical & Ink Co. in the U.S.A. These inks are made with traditional lithographers in mind and designed to give the best results on litho stone.
"1803 Senefelder's Crayon Black is the industry standard for lithographic blacks. A very stiff ink that works to a buttery smooth finish with a bit of mixing"
Please note Senefelders Crayon Black is currently out of stock other colours are however available.