The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Blackrock Castle. Cork. The National Series. 1914
Blackrock Castle. Cork. Irish Tourist Association
Blackrock Castle Cork. 202682. Valentine and Sons
Co. Cork. Blackrock Castle. Valentines Series
Cork. Blackrock Castle. The Wrench Series. No. 15. 195
Blackrock Castle. Cork. 202682. Carbo Colour. Valentines
Cork. Blackrock Castle. Wrench Series No. 15195
Blackrock Castle. Co. Cork. A Conspicuous Landmark. J. W. Tarrant. J. Arthur Dixon. 1974
