# Portrait of Jacobus Koelman (1631-1695).

- By: Jan Luyken
- Date: 1679
- Classification: Painting
- Credit line: Geheugen van Nederland
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Jacobus_Koelman.jpeg)
- Rights: Public domain
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Jacobus_Koelman.jpeg/1920px-Jacobus_Koelman.jpeg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)