Bidspirit auction | Two portrait engravings of Pruss

Two portrait engravings of Pruss - Two portrait engravings of Prussia: Johann Esaias Nilson (1721-1788), King Frederick II of Prussia and Prince Henry of Prussia, two copper engravings, inscribed ''Fridericus Rex Borussiae Elector Brandeb.'', and ''Fridericus Henricus Ludovicus Princeps Borussiae, Marchio Brandeburgicus'', approx. 18.5 x 14 cm, framed behind glass and passe-partout up to 54 x 43 cm