The Goldsmith and Silversmith Peter Isselburg (Ysselburg) was appointed Mint Warden for Cologne (City), Germany, in 1685,
and Special Warden from 1686. Isselburg died on 15 September 1702. Lit.: Alfred Noss, Die Münzen der Erzbischöfe von Köln
1547-1794 (1925) p. 196; Wolfgang Scheffler, Goldschmiede Rheinland-Westfalens - Aachen - Köln (1973) n. 1294 p. 494.
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