Public domain
Portrait of Johannes de Koo
From the collection of Rijksmuseum, Amsterdam. Free to download, adapt and use — no permission needed.
About this work
Supplement to De Amsterdammer, Weekly for the Netherlands.
Rijksmuseum, Amsterdam’s own descriptionCredit linePortret van Johannes de Koo. 1909-05-16. Johan Braakensiek. Rijksmuseum, Amsterdam. Public domain.