Public domain
Trial sheet
From the collection of Rijksmuseum, Amsterdam. Free to download, adapt and use — no permission needed.
About this work
Sheet with trial impressions and the names of the powders that were pressed through: sand, red earth (rodart), alum, and black chalk or powder. The sheet is loose at the back of an album.
Rijksmuseum, Amsterdam’s own descriptionSubjects
Credit lineProefblad. 1736 - 1798. Cornelis Ploos van Amstel. Rijksmuseum, Amsterdam. Public domain.