The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Ross Castle. S. Hildesheimer. No. 5347
Windermere and Wray Castle. Hildesheimer. 1907
Ross Castle. S. Hildesheimer. Killarney Series No. 5347
Killarney. Ross Castle. S. Hildesheimer. No. 5229. E. Longstaffe. 1904
Ross Castle. S. Hildesheimer. Killarney Series No. 5347. Fac Simile Series. 1907