# Brief aan anoniem

- By: Nicaise De Keyser (Santvliet, 1813–1887)
- Date: 1849-05-11
- Medium: paper, ink
- Classification: letter
- Dimensions: height 425 mm x width 425 mm
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/RP-D-1981-11--ea9ad0c0becd2d61487facbae1003c1a)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/c48fa8d3e4e4faf8444c182b9f02f514.jpg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)