| Item Details | |
| Entry Number | 2391 |
| Author | McKELVEY, BLAKE. |
| Title | The Western Union Centennial. |
| Publication | Museum Service, 29 (1956), 54-55. |
| Subject(s) | : ELECTRONIC MEDIA -- Telegraph |
| Notes | (Sibley, Selden, O'Reilly, et al.) |
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