AT&T, copy of letter from Lieutenant Colonel du Genie Ferrie, 1928 safety negative Rosenfeld and Sons 1928-04-04 1984.187.31342 ViewDirect telephone communication with Sweden, AT&T, 1928 safety negative Rosenfeld and Sons 1928-02-28 1984.187.31042 ViewTransatlantic Telephone Opening, 1927 safety negative Rosenfeld and Sons 1927-01-07 1984.187.27495 ViewDirect communications to France, AT&T, 1928 safety negative Rosenfeld and Sons 1928-03-28 1984.187.31260 View
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Wireless communication systems ViewTransatlantic cables (1857) ViewTransatlantic cables (1866) ViewTransatlantic cables (1865) ViewTeletype View
