Here are four pages from the Anglo-American Telegraph Company diary of 1866. The diary covers the testing of the 1866 cable, the commencement of traffic handling, transfers between the Anglo cable and the Western Union landlines, a count and evalutation of the traffic, log entries of distinguished visitors to the office, records of staff assigned movement of cable ships, the successful landing of the 1865 cable and the beginning of its operations, references to Cyrus Fields and other officers, and so on.