Jan Jiří Balzer (1738-1799)
Norbert Grund (1717-1767)
Steel engraving on paper, 150x213 mm, marked lower left in print "Gemahlt von Norbert Grund" and lower right "Gestochen von Joh. Balzer in Prag.".
This auction item was auctioned before more than year and is not relevant anymore.