Old, Established Showa Era Supreme Rapeseed Oil Lampblack Ink 18g Supreme Old Ink, Good Condition! I understand this is pure rapeseed oil lampblack ink from a now-defunct, long-established shop, dating back to around the 1940s. Pure rapeseed oil lampblack ink, without any mineral oil or other additives, is often expensive even in small sizes, and it seems that advanced users often used it for high-quality works. I will sell this to serious, advanced users. This is the only one available, so please don't delay. It is old, so please understand the current condition.