Kobaien Gosei Beni-bana Sumi Inkstick (五星 紅花墨, ¥4,400 / ≈$29 USD) — 450 Years of Nara Sumi from a 1577-Founded Maker, From Heijō-kyō to Your Calligraphy Desk [2026 Buyer’s Guide]
Kobaien (古梅園), founded in 1577 in Nara, is the oldest continuously-operating sumi-ink maker in Japan — and the…