# Portret van Petrus de Boer, hoogleraar wis- en natuurkunde in Groningen en rector magnificus van 1882 tot 1883

- By: Friedrich Julius von Kolkow (Danzig, 1839–1914)
- Date: c. 1878 - in or before 1883
- Medium: photographic support
- Classification: page
- Dimensions: height 100 mm x width 63 mm
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/RP-F-F25274--3cd5393304c8b642996d528dfd06e4ef)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/feeb5503a2f9126a0737aa00d9457f45.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)