Traditional Japanese calligraphy ink, referred to as sumi ink, comes in a solid form. It takes at least four years of production before these ink sticks can be sold, and even longer for the most expensive ones.

A 200-gram high-grade ink stick from a producer like Kobaien costs over $1,000. And at some other retailers, prices can reach almost $2,000. Meanwhile, almost double the amount of commercial India ink can go for as little as $9.

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