For intellectual property law reasons accessible only on the web from the European Union legal area and from the ZBW reading room.
Total number of images: 15
| Images on film h1/co/A0381H/0364 | Pacific Telephone & Telegraph Company |
| Signature | E15 P 36 |
| URI | https://pm20.zbw.eu/folder/co/098662 |
| ID | co/098662 |