Possibly, Lauchhammer foundry, Germany, est. 1725
Heinrich Duke of Saxony (1473-1541; ruled from 1539 as Heinrich the Pius); 300 Years of the Reformation in Dresden
Calling Card
The name on the calling card refers to Carl Friedrich Plattner (1800-1858), professor of metallurgy at the Freiburg Mining Akademie from 1842 to 1856.