# Brief aan Petrus Cornelis Koning

- By: Nicaise De Keyser (Santvliet, 1813–1887)
- Date: 1844-09-30
- Medium: paper, ink
- Classification: letter
- Dimensions: height 425 mm x width 425 mm
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/RP-D-2017-626--76921bc0f4f99f44cc22b6f70baa9666)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/412a899af8d77c272643851e571f017b.jpg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)