"- Are you sure, says Bloom, the councillor is going? I wanted to see him, as it happens.
- Well, he's going off by the mailboat, says Joe, tonight.
- That's too bad, says Bloom. I wanted particularly. Perhaps only Mr Field is going. I couldn't phone. No. You're sure?" (U12.852)
This is a PC of RMS (= Royal Mail Service) Ulster, one of the mailboats operating between Kingstown and Holyhead on the Irish sea in 1904. The others were RMS Munster, Leinster and Connaught.