These fountain pen ink cartridges are compatible with many Fountain Pens that will take an “International Short Cartridge”. Overall Size - 1 1/2 inches. x 1/4 inches. (40mm x 6mm).

I'm one of those old-fashioned pen lovers for whom a cartridge filling system can be tolerated but never really loved, and I'm pleased as punch that the 1912 Heritage has a piston filling system.

Known for a wide variety of pens, fountain pen nibs and student-style pens, by 1918 it claimed production of 200 million pens per year and over 250 styles of nibs.