KAZIMIERZ IV JAGIELLOÑCZYK (1427-1492), Grand Duke of Lithuania in 1440-1492, King of Poland in 1447-1492. Bust in oval, note below; author undetermined, first 10 years of 17th century, probably Renaissance alteration of portrait from earlier period; PORTRET UNKNOWN IN IKONOGRAPHY; gouache on parchment, condition bdb, on verso visible remains of linen backing with traces of glue, additionally pasted on cardboard (in upper corners); dimensions of portrait 95x106 mm; dimensions of sheet 96x215 mm; CASIMIRVS IAGELLONIDES; UNIQUE!!!