^Lot 1197 JAPAN, Edo mint, gold 1 ryo (Bunsei Koban-kin), Tokugawa Shogunate, Bunsei era, 1819 to 1828.

JAPAN, Edo mint, gold 1 ryo (Bunsei Koban-kin), Tokugawa Shogunate, Bunsei era, 1819 to 1828. JNDA 09-20; KM-C22a; Fr-14. 13.18 grams. 60 x 33 mm. Large, thin, oval, hammered-gold issue, choice XF with strong central stamps and pleasing original gold color. Obverse: Fan-shaped go san kiri crests at top and bottom, in upper square "Ichi Ryō" (One Ryō), in lower square the name of the engraver 光 / 次 "Mitsutsugu," all over the characteristic horizontal gozames; Reverse: era marker cursive 文, "Bun" at upper right, central Kinza verification seal and additional mint officials’ punches. XRF tested at approximately 59.55% gold and 40.23% silver. Accompanied by Japan Numismatic Dealers Association Certificate of Authenticity No. 81442.