| Photographers number: | 119 |
|---|---|
| Title: | Laborers and Rocks near opening of Summit Tunnel |
| Notes: | A.A. Hart mount |
| Photographer: | Alfred A Hart |
| Publisher: | Alfred A Hart |
| Format: | Stereograph |
| Image courtesy of: | California State Library |
| Tags: | California | Men at Work | Occupational | Placer County |
| CarletonWatkins.org ID: | 1004796 |