"1 / f fluctuation"
"1 / F fluctuation" included in the tone of a long time. It is scientifically defined as the sound of the natural world that people feel comfortable, such as the flow of Ogawa, the sound of the waves, and the song of the bird.
A gentle tone carries a refreshing wind. The strip uses Warron paper resistant to water, and if you hold it to light, the watermark will come up.
Production area: Toyama Prefecture
Windbrin: Copper alloy
Strip: Warlon Paper
Color: Grey, Gallery