# Portrait of Cornelis Ploos van Amstel

- By: Jacobus Buys (Amsterdam, 1724–1801)
- Date: 1766
- Medium: panel, oil paint (paint)
- Classification: painting
- Dimensions: depth 4.5 cm
- Credit line: On loan from the Koninklijk Oudheidkundig Genootschap
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/SK-C-515--5701cf7b6a8f69fba88b0fdc6fe0147e)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/627719cac1fb8a1db34fee5aa21ff4a8.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

The Amsterdam timber merchant Ploos van Amstel, a founding member of the Felix Meritis Society, had an impressive collection of drawings, paintings, coins and medals and sculptures. He was also a designer, draughtsman and publisher, and invented a new print-making technique for making facsimile reproductions of drawings. The screen by the window ensures that a soft, even light falls on the copper plate on which he is working.