Ostrich ink have been made in Tianjin since 1935. Many say they are the inventors of the pigmented ink that is used widely today.

This ink is actually a green with a dark bluesish sheen.

This is from their sheening series of inks. As with all ink, the amount of sheen will be determined by paper, nib size and other factors.
The color on your monitor is only a reference and may show differently on your paper

Ostrich inks are safe for all fountain pens.

30ml Glass Bottle