Some early examples by him date back to the 1990s, as were reported on these pages.
Those initial nibs later evolved into what we know today—open nibs with or without overfeed that made their way to the catalog of the brand and to commercial success.
Then some nibmeisters copied this idea. Wagner-resident Yamada used Pelikan M800 as the base for his version.
Wagner member Mr. Mochizuki, on his side, used a much more affordable canvas—a Chinese pen available at the 100-yen chain shop Daiso.
Only recently, in the last couple of years, non-Japanese nibmeisters have attempted these two-fold nibs. The most brilliant of them, dare I say, is nib wizard Ralph Reyes of Regalia Writing Labs with his continuous development of old and new ideas. The nib here shows is a nice example of this—it is a cross-concord nib, in Sailor terms, with an overfeed; but the overfeed is made out of a third nib and is nicely integrated on the unit.
My thanks to Inky.Rocks.
NOTE (16/January/2020): Writng samples of some of those nibs can be seen on the following Chronicle: https://estilofilos.blogspot.com/2020/01/2-fold-nibs-writing-samples.html
Opus 88 Koloro #6 – De Atramentis Beethoven
Bruno Taut
Shinjuku, January 10th, 2020
etiquetas: Sailor, nibmeister Nobuyoshi Nagahara, Nibmeister Yamada, nibmeister Ralph Reyes, plumín, Mr. Mochizuki
Bruno Taut
Shinjuku, January 10th, 2020
etiquetas: Sailor, nibmeister Nobuyoshi Nagahara, Nibmeister Yamada, nibmeister Ralph Reyes, plumín, Mr. Mochizuki