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Wikipedia[1] gives the year only - "Ryugin was established in 2003 at Roppongi, Minato-ku, Tokyo" - so the pin takes that year's last day. It is placed at the Roppongi address of that opening; the restaurant has since moved to Hibiya.Seiji Yamamoto opened RyuGin in Roppongi in 2003 and used it to argue that kaiseki could be taken apart and rebuilt with modern technique without ceasing to be kaiseki - a position that made it the Japanese restaurant most often named on international lists. It has since moved to Hibiya, where it holds three Michelin stars.
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