# The Iron-Clad Mine

- By: Grafton Tyler Brown (born Harrisburg, PA 1841-died St. Peter, MN 1918)
- Date: ca. 1880
- Medium: lithograph on paper
- Classification: Graphic arts
- Dimensions: sheet and image: 14 1/2 x 18 5/8 in. (36.8 x 47.3 cm)
- Culture: California
- Credit line: Smithsonian American Art Museum, Museum purchase
- Museum: [Smithsonian Institution](https://americanart.si.edu/collections/search/artwork/?id=33833)
- Rights: [CC0 (Smithsonian Open Access)](https://creativecommons.org/publicdomain/zero/1.0/)
- Picture: https://invisiblenetwork.ai/thumbs/web/5e4434784df299de269c9dcc23b9640c.jpg
- Who can see it: Little Ones profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)