Cardiff (GB)
Cardiff (Welsh: Caerdydd) is the capital and largest city in Wales and the ninth largest city in the United Kingdom.
Caerdydd (the Welsh name of the city) derives from the earlier Welsh form Caerdyf. The change from -dyf to -dydd shows the colloquial alteration of Welsh f [v] and dd [ð], and was perhaps also driven by folk etymology (dydd is Welsh for 'day' whereas dyf has no obvious meaning). This sound change had probably first occurred in the Middle Ages; both forms were current in the Tudor period. King Edward VII granted Cardiff city status on 28 October 1905, and the city acquired a Roman Catholic Cathedral in 1916. King Edward VII granted Cardiff city status on 28 October 1905, and the city acquired a Roman Catholic Cathedral in 1916. In subsequent years an increasing number of national institutions were located in the city, including the National Museum of Wales, Welsh National War Memorial, and the University of Wales Registry Building—however, it was denied the National Library of Wales, partly because the library's founder, Sir John Williams, considered Cardiff to have "a non-Welsh population".
Cardiff Office Postmarks
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Post Town by 1659 Money Order Office 1 October 1792 |
City Of Cardiff
45 - 46 Queens Arcade, Queen Street, Cardiff from 1994 |
No Change |
![]() CARDIFF L coded 162 Duplex of 1885 6d cover to East Melbourne, Victoria, Australia. |
Krag Machines
(See: Note below Bute Docks Office.)
![]() A Hand driven Krag machine was in use at Cardiff 1912-15 it has a distinctive 'dotted cross' after CARDIFF. O.H.M.S. cover to Newport, from Cardiff Engineering Department. |
Cardiff Docks, Sub Office and Branch Office Postmarks
An important feature of Cardiff was the rise in dockyards and the industry brought lots of post with it. Offices were set up specifically to handle the increased volume of mail. After a brief post-war boom, Cardiff docks entered a prolonged decline in the interwar period. By 1936, their trade was less than half its value in 1913, reflecting the slump in demand for Welsh coal. Bomb damage during the Cardiff Blitz in World War II included the devastation of Llandaff Cathedral, and in the immediate postwar years the city's link with the Bute family came to an end. The city was proclaimed capital city of Wales on 20 December 1955.
City Hall 
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Town Sub Office under Cardiff May 1912 Money Order Office, Savings Bank & Telegraph Office.
Code used = ZCV. |
A short lived Sub-Office lasting from 1912-1968
Bute Docks 
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Post Office under Cardiff 19 January 1847 Money Order Office 27 July 1854 |
Changed from Branch Office to Town Sub Office 8 June 1984 |
A sub-office set up to cope with mail from the dockyard companies and associated business within Bute Docks.
It is thought that there was no Krag machine at Bute Docks, for cancelling large volume of ship mail. It is likely they were done at Westgate Street, Cardiff and used on mail landed at Fishguard from the Transatlantic liners. (See: Cardiff Office Krag machine above.)
Its modern name is Bute East Dock as the Bute West dock was reclaimed for land in the 20th century the development is now called Atlantic Wharf.
![]() GB Cover sent from Bute Docks Cardiff to Bordeaux, France | |
East Dock / Cardiff Docks 
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Money Order Office, Savings Bank and Telegraph Office 1 May 1874
Duplex 162 issued 1874 & 1880 Closed 30 March 1895 |
A branch-office set up to cope with mail from the dockyard companies and associated business within the East Dock area.
The area later became known just as the Cardiff Docks.
Cardiff Docks office also served as the Telegraph Office for the area of the docks.
Barry Dock 
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Branch Post Office established 1 August 1890 Duplex numeral 162 issued |
A branch-office set up to cope with mail from the dockyard companies and associated business within Barry Docks.
The branch office ran under Cardiff control and had handstamps BARRY DOCK B.O. CARDIFF
See also Barry (GB)
Canton Sub Office
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Town Sub Office under Cardiff January 1853 Money Order Office 1 January 1861 |
Changed to a Modified Scale Payment Office 1990s' | Changed to a Main Office 5 August 2013 |
Roath Office
Another dockland office.
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
TSO under Cardiff. Money Order Office 1 April 1865 Savings Bank 1 July 1865 |
Renamed ‘Roath’ again April 1906
Closed 1 February 1985 |
Castle Road Roath Office
Castle Road, Roath office, the road name has subsequently been changed to City Road.
It was a Sub office of Cardiff 1.
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Town Sub Office under Cardiff 1 January 1890 Money Order Office, Savings Bank & Telegraph Office. Code used = CBU |
Renamed ‘Roath’ 1906 (by at least March 1906) |
Bargoed Office 
Bargoed (Welsh: Bargod) is a town in the Rhymney Valley, Wales, one of the South Wales Valleys. It lies on the Rhymney River in the county borough of Caerphilly and straddles the ancient boundary of Glamorgan and Monmouthshire, with Bargoed originally lying within the old county of Glamorganshire whereas Aberbargoed was in the old county of Monmouthshire. 'Greater Bargoed', as defined by the local authority Caerphilly County Borough Council, consists of the towns of Bargoed, Aberbargoed and the village of Gilfach. Formerly under Newport Post Office
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Post Office under Newport, Money Order office by 1867 RSO (Mon) 1872 |
Post Town 1 June 1932
Changed from a BO to a Modified Scale Payment Office 1990 |
Llanbradach 
Llanbradach is a village in the Welsh county borough of Caerphilly, within the historic boundaries of Monmouthshire, south Wales less than 3 miles north of the town of Caerphilly. It is mostly residential, and contains three pubs, a primary school, a small local shopping area, a recreation ground, a library, two doctor's surgeries, and a youth centre. Being a traditional long and narrow South Wales Valleys village, its potential for expansion is restricted by the river on its eastern side and the hillside to the west.
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Sengenydd 
Senghenydd (Welsh: Senghennydd) is a village in the Aber valley, roughly four miles north-west of the town of Caerphilly. Traditionally within the county of Glamorgan it is in the community of Aber Valley in the county borough of Caerphilly, Wales.
Pre-stamp to 1899 | 1900-1999 | 2000-Present |
Post Office under Cardiff named 'Senghenith' 1 February 1895 Money Order Office & Savings Bank |
Post Office named ‘Senghenydd' 1 October 1904 Under Caerphilly 1 June 1932 |
Relocated 20 May 2012 as Post Office Local |
Bedwas / Bedwas Bridge
1867 originally named Bedwas Bridge - PO under Cardiff. 1st April 1884 renamed to Bedwas.
20 August 1901 - Telegraph Office. Code used = QWY Also see: Newport 1924 & Caerphilly 1999