The Goldsmith Georg Hartmann Plappert was appointed Die cutter in Cologne (City), Germany, in 1658. His monogram was GHP.
He died in 1692. Lit.: Alfred Noss, Die Münzen der Städte Köln und Neuss: 1474-1794 (1926) p. 49. 206; Max Bernhart, Medaillen
und Plaketten, Berlin (1920) p. 221.