JAPAN: Tempo, 1830-1844, AR ichibu (8.05g), Cr-16. JSDA-p.96, type Zz, choice EF, RR. Without the characteristic inverted cherry blossom ("star") on both sides, called type Zz in JSDA (p.97), where it is marked rarity "2" and valued at ¥100,000, and described in English by Hartill (p.128).
Estimate: 400-500 USD