# Rocks and Plants, Ditlev Martens' Album

- By: Caspar David Friedrich (1774–1840)
- Date: 1803-1806
- Medium: Pencil
- Classification: Drawing
- Dimensions: height 238 mm, width 158 mm
- Museum: [SMK – National Gallery of Denmark](https://open.smk.dk/artwork/image/KKS1972-38/34)
- Rights: [Public Domain Mark: SMK waives its rights in this photograph](https://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://api.smk.dk/api/v1/thumbnail/b19d0532-6739-455a-a6c1-99a92099ebaf.jpg
- Who can see it: Little Ones profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)