COURLAND. Friedrich Kettler (1587-1642). 3 Groschen (1597). Mitau.
Obv: MO ARG DVCVM CVR.
Bare-headed bust right, wearing ruffled collar.
Rev: III / GROSS ARG / DVCVM CV / ET SE.
Emperial eagle left and knight.
Iger KuF.97.
Condition: Good very fine.
Weight: 0.88 g.
Diameter: 20 mm.