1814 – General Post Office, O’Connell Street, Dublin Architect: Francis Johnston Built in 1814 and sited in the centre of Dublin’s main thoroughfare – O’Connell Street, the General Post Office was designed by Francis Johnston.
1871 – Central Telegraph Office, General Post Office, London Architect: James Williams The headquarters for the General Post Office was built on the eastern side of St. Martin’s Le Grand in the City of London between 1825 and 1829 to designs by Robert Smirke.
1891 – General Post Office, Martin Pl., Sydney, Australia Architect: James Barnet Designed by colonial architect James Barnet, the building was constructed in stages from 1866 to 1891.