Working Chamber Caisson "B"
- Genre
- Photograph
- Description
- Workers under ground clearing space for the Caisson
- Date or Approximation
- September 22, 1922
- Original Format
- Black-and-white print
- Subject
- Benjamin Franklin Bridge
- Spatial Coverage
- Old City Philadelphia
- Camden City
- Archive
- Historical Society of Pennsylvania
- Collection
- Phillip B. Wallace Collection of Photographs
- Contributor
- Dante Requena
- Rights
- Image published for educational purposes by permission from the Historical Society of Pennsylvania.