1823, Kingdom of Hannover, George IV. Silver 2/3 Thaler Coin. PCGS AU-55! Mint Year: 1823 References: KM-140. Denomination: 2/3 Thaler Mint Place: Clausthal © Condition: Certified and graded by PCGS as AU-55! Material: Silver (.993) Weight: 13.06gm Obverse: Wreathed bust of George IV as King of the United Kingdom and Hannover left. Mint initial © below, engraver´s signature on head trunc ...