Suzuki Ittetsu Silk 015 [OFFICIAL]

There is dedicated to this specific model. "Solid article" here likely means a product listing, catalog description, or user review from a specialty Japanese brush retailer – not a journal or magazine feature.

However, based on the naming conventions of high-end Japanese calligraphy (shodō) and sumi-e brushes, here is the most likely breakdown and where you can find authoritative information: suzuki ittetsu silk 015

The Subversive Potential of Female-Friendly Pornography in Japan (Hambleton, 2015) There is dedicated to this specific model

The specific term "" refers to a production from the SILK LABO series. Key Aspects of the "SILK-015" Content suzuki ittetsu silk 015