Diamine 150th Anniversary Fountain Pen ink – 40ml – Regency Blue

Diamine inks have been made in the United Kingdom since 1864 and are available in over 100 standard colors
 
For their 150th anniversary, Diamine introduced 16 inks in custom wedge-shaped bottles that form a circle with 8 bottles.
 
This ink is offered in a glass 40ml bottle.