Manufacturing since 1864, Diamine Inks relocated to a specially for this purpose built 'state of the art' factory in Liverpool in 1925 and later close to the world famous Aintree racing course. Even troughout all transition the Diamine trade mark and it's production methods survived, symbolising the finest quality of fountain pen inks, calligraphy/drawing ink and stamp pads. Due to the very fine quality Diamine fountain pen inks are suitable for all brands of pen. Suitable for fountain pens and penholders. Fountain pens using cartridges can be equipped with converters. Content: 50ml