Public domain
Portrait of N.G. Pierson, Professor of Law at the University of Amsterdam
From the collection of Rijksmuseum, Amsterdam. Free to download, adapt and use — no permission needed.
Credit linePortret van N.G. Pierson, hoogleraar rechtsgeleerdheid aan de Universiteit van Amsterdam. c. 1883 - in or before 18. anonymous. Rijksmuseum, Amsterdam. Public domain.