Watch List notes:

JAPAN: Meiwa, 1764-1772, AR 2 shu (10.29g), Edo mint, H-9.71, JNDA-09-47, Ko Nanryo type, Japanese Kanji for "take eight pieces Nanryo to exchange for one ryo koban" // a Fundo (symbol for official weight with an incuse stamp, jo, to the left of it over ginza (silver mint) and joze (mint official) all surrounded by pearl border, issued 1772-1824, EF.

Estimate: 150-200 USD