The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
P.3. Castell Coch. Glamorgan. Castle from south east. Department of Environment. Crown. 1967. W. S. Cowell
Glamorgan. Castell Coch. The Castle from the South East. Crown
Castell Coch. South Glamorgan. Castle from South East. Crown. CBL Colour Print Limited
Castell Coch. South Glamorgan. Castle from South East. Crown. South Western Printers Ltd. 1967
Glamorgan. Castell Coch. Whitchurch. Air View. Ministry of Works. Aerofilms and Aero Pictorial
Glamorgan. Castell Coch. Whitchurch. The Banqueting Hall. Ministry of Works. Crown
Glamorgan. Castell Coch. Keep and Well Tower. from East. Crown. W. S. Cowell
Glamorgan. Castell Coch. The Castle form South East. Crown. W. S. Cowell