Platinum Izumo Urushi Akatame (Dark Red)Shape, surface, and simplicity. The Dark Red Izumo is a model that has been reduced to its simplest terms. This deep red from within color would be considered Kuro tamenuri in the Nakaya pens. With all the grace of a French curve, this pen is a study in subtle arcs. The cap profile is a smooth convex form which carries through to the barrel, where it turns concave before returning to a convex shape. Every surface is curved there is hardly a straight