1818 Germany Bavaria Silver Thaler - "Constitution"- NGC AU58 - Superb Original! Nice Luster still remaining. KM# 361. Maximilian IV. Davenport 553, KM 708 (361), Thun 45, AKS 59, J. 15. Commemorative issue - to commemorate the Bavarian Constitution of 1818 - One year coin. Bavaria, King Maximilian Joseph (1799- 1825)