MON Coins
Numismatic catalog: prices, photos and descriptions for MON coins type
Japanese Mon (Tenpō Tsūhō): Value & Cast Coin Guide
Illustrated Specimen Details: Japan 100 Mon (Tenpō Tsūhō) Example Specimen: 100 Mon, 1835–1870 — Japan (Edo Period) Design & Inscriptions: This distinctive oval-shaped cast coin with a square central hole is known natively …