Nakaya Dorsal Fin Version 1 Ao-tamenuri
The Nakaya Dorsal Fin Version 1 is one of the most innovative and distinctive designs created by Nakaya. Layers of Urushi lacquer are applied over a period of months to create the fin on the cap, and the surface is then completed with either smooth Urushi or stone texture Ishime-Kanshitsu finish. With either finish, this is one of the most memorable writing instruments Nakaya has produced.
With rich blue-green highlights and a unique raised fin on the cap, Nakaya's Dorsal Fin Version 1 Ao-tamenuri fountain pen represents the union between sleek form and function. The Dorsal Fin Version 1 is popular for its interesting shape as well as the cap fin that serves as a built-in roll-stopper, while the Ao-tamenuri finish is sought after for its depth. Now these elements come together in a single fountain pen.
The single cap fin takes on the appearance of a billowed sail when the Dorsal Fin Version 1 Ao-tamenuri fountain pen is placed on its side. With a color reminiscent of deep ocean waters, this pen has nautical notes. Multiple layers of urushi lacquer are applied over a period of months to create the raised fin - this is one of the most time-intensive procedures utilized by Nakaya.
The underlying lighter turquoise color will become more visible over time as it breaks through the Urushi glaze.
Measurements & Specifications
| Cap Type | Threaded |
| Closed Length | 5.9" |
| Postable | Postable With Caution |
| Posted Length | 6.8" |
| Barrel Length | 4.7" |
| Section Diameter | 0.5" |
| Cartridge Capacity | 1.5 ml |
| Converter Capacity | 0.5 ml |
| Ink Capacity | 1.5 ml |
| Filling System | Cartridge-Converter |
| Pen Weight | 31 g |
| Barrel Diameter | 0.7 |
