Rock Groups (Big Brother and the Holding Company and the Grateful Dead), San Francisco
- Medium
- platinum/palladium print on Rives BFK paper mounted on aluminum, 1979/1980
- Dimensions
- image: 46.83 × 49.85 cm (18 7/16 × 19 5/8 in.) sheet (visible): 49.53 × 51.44 cm (19 1/2 × 20 1/4 in.) overall: 66.04 × 76.2 × 1.27 cm (26 × 30 × 1/2 in.)
- Genre
- photograph
- Museum
- National Gallery of Art
![The Umbrellas, Joint Project for Japan and U.S.A. [left panel]](https://api.nga.gov/iiif/54dbdb89-51b3-430d-aad5-a992a04dc135/full/843,/0/default.jpg)
