# Grassy Island Shaft, Del. & Hudson Canal Co.

- By: Thomas H. Johnson (American, born 1821)
- Date: c. 1863-1865
- Medium: albumen silver print
- Classification: Photograph
- Dimensions: image/sheet: 30.6 × 40.5 cm (12 1/16 × 15 15/16 in.) ; mount: 44.4 × 53.3 cm (17 1/2 × 21 in.)
- Culture: American
- Credit line: Alfred H. Moses and Fern M. Schad Fund
- Museum: [National Gallery of Art](https://www.nga.gov/collection/art-object-page.207962.html)
- Rights: [Public domain (NGA Open Access, CC0)](https://creativecommons.org/publicdomain/zero/1.0/)
- Picture: https://api.nga.gov/iiif/fb8dd520-bdce-4b0a-8c3e-f5640a3b484a/full/!1920,1080/0/default.jpg
- Who can see it: Tweens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)