# Portret van een onbekende vrouw

- By: Anton Cornelis Thomann (Alkmaar, 1873–1946)
- Date: c. 1894 - c. 1909
- Medium: cardboard, paper, photographic support
- Classification: carte-de-visite
- Dimensions: height 104 mm x width 62 mm
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/RP-F-F27013--6456341bd393704dafe66beb85a367cb)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://iiif.micr.io/lPEjF/full/!1692,1080/0/default.jpg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)