The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
National Gallery of Ireland. Irish School. The Piping Boy. Nathaniel Hone. Patrons for Postcards. Hibernian Insurance. Colorman
National Gallery of Ireland. Irish School. The Mill Ballinrobe. James Arthur O Connor. Hibernian Insurance. Cahill Printers
St. Francis in Ecstasy by El Greco. Spanish School. National Gallery of Ireland. Hely
National Gallery of Ireland. English School. A View From Tivoli Over the Campagna. Richard Wilson. Ormond Printing. Postcard Scheme by Reynolds Cooper McCarron
London. National Gallery and St. Martin in the Fields. J. Arthur Dixon. S. E. Punter. 1974
London. National Gallery and St. Martin in the Fields. J. Arthur Dixon. S. E. Punter. 1975
Trafalgar Square Showing the National Gallery and St. Martin in the Fields. Kardorama
London. National Gallery and St. Martin in the Fields. The Photographic Greeting Card. Natural Colour Photo Series. 1965