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.
- Titles Calling Card (Descriptive)
- Artist Possibly, Lauchhammer foundry, Germany, est. 1725
- Medium cast iron
- Dimensions 1 13/16 x 2 13/16 in., 29.6g (4.6 x 7.1 cm)
- Credit Line Gift of American Cast Iron Pipe Company, 1986.432.1
- Work Type plaque
- Classification Plaques